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Emmie Martin,Christi DannerJun 16, 2015, 19:30 IST
Chip Somodevilla / GettyMicrosoft founder Bill Gates is worth an estimated $85.7 billion.There are two types of billionaires: those who inherited their wealth, and those who built it from nothing.Our friends at Wealth-X, a database of information about ultra-high net worth individuals, focused on the latter to compile a list of the wealthiest self-made billionaires in the world. From tech mogul Bill Gates to Alibaba founder Jack Ma, here's who made the list.
