Assertion: billionaire's worth | /r/HasProperty | around $3.7 billion
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text: The members of that self-made group generally made their money in one of a few ways: they invented a useful product (think Bill Gates with Microsoft, whose net worth is around $107 billion); they innovated a new way of solving a problem (think Airbnb co-founder Brian Chesky, whose net worth is around $3.7 billion); or they are savvy investors (think Warren Buffett, worth $87.3 billion).