Complex sentence: The quality of life of the average Argentine was lowered proportionally; many businesses closed or went bankrupt, many imported products became virtually inaccessible, and salaries were left as they were before the crisis.
Split into simpler sentences: The quality of life of the average Argentine was lowered proportionall. Many businesses closed or went bankrupt, many imported products became virtually inaccessible, and salaries were left as they were before the crisis.