Question: How far southeast of the state capital Xalapa is the birthplace of Rafael Domínguez Gamas?

Context paragraphs:
Rafael Lucio: Rafael Lucio is a municipality located in the montane central zone of the State of Veracruz, about 9 km from state capital Xalapa.  It has a surface of 24.68 km2.  It is located at .  By Decree of November 5, 1932 Rafael Lucio's municipality and the head-board is created they are named Rafael Lucio, in honor of the illustrious doctor of Xalapa.

Alto Lucero: Alto Lucero (formally: Alto Lucero de Gutiérrez Barrios) is a city in the Mexican state of Veracruz.  It is located at , some 35 km from state capital Xalapa.  It serves as the administrative centre for the surrounding municipality of the same name.

Actopan, Veracruz: Actopan Municipality is a municipality located in the montane central zone in the State of Veracruz, about 50 km from state capital Xalapa.  It has a surface of 822.54 km2.  It is located at .  Actopan, the municipal head-board is a small city, located closely of the capital of the state; for its nature, the extraordinary richness of its lands and the determination of its population has placed to this region as one of the most important zones of production of Mango of the State.

Rafael Domínguez: Rafael Domínguez Gamas (Cárdenas, Tabasco, February 14, 1883 -Veracruz, Veracruz, January 23, 1959) was a Mexican academic, journalist, lawyer and writer.  He was a member of Academia Mexicana de la Lengua.

Ángel R. Cabada (municipality): Ángel R. Cabada Municipality is a municipality in Veracruz, Mexico.  It is located about 207 km southeast from the state capital Xalapa, and is in the Papaloapan River region between Lerdo de Tejada and San Andrés Tuxtla on the Federal Highway.  The municipality of Ángel R. Cabada is bordered to the north by Gulf of Mexico, to the south by Santiago Tuxtla, and to the west by Saltabarranca and Lerdo de Tejada.

Rafael Delgado: Rafael Delgado is a municipality located in the montane central zone of the State of Veracruz, about 140 km from state capital Xalapa.  It has a surface of 39.48 km2.

Agua Dulce, Veracruz: Agua Dulce Municipality is a municipality in Veracruz, Mexico.  It is located about 330 km southeast from the state capital Xalapa.  It has an area of 259.25 km2 .

Veracruz (city): Veracruz (] ), officially known as Heroica Veracruz, is a major port city and municipality on the Gulf of Mexico in the Mexican state of Veracruz.  The city is located along the coast in the central part of the state, 90 km southeast of the state capital Xalapa along Federal Highway 140.

Saltabarranca: Saltabarranca is a municipality located in the south zone of the State of Veracruz, Mexico, about 180 km from state capital Xalapa.  It has an area of 91.3 km2 .  It is located at .  There is not known the origin of the name of this existing municipality from the creation of the State of Veracruz (1824).

Tlacolulan: Tlacolulan is a municipality located in the montane central zone in the State of Veracruz, about 17 km from state capital Xalapa.  It has a surface of 137.36 km2.  It is located at .  It was inhabited by the totonac pre-Hispanic, of the former ones of Xalapa's region.  For decree number 25 of April 14, 1861 the Government of the State, ordered that the people head-board of this municipality names Tlacolulan of the Free ones.

Supporting paragraphs: Rafael Domínguez Veracruz (city)
Answer: 90 km