Facebook founder Mark Zuckerberg snared the number four

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Facebook founder Mark Zuckerberg snared the number four position with a net worth of $41.2 billion. (BCCL)

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Alibaba's founder Jack Ma is on number seven with a worth of $23.2 billion. He is the wealthiest of 10 Chinese billionaires on the list. (BCCL)

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Former Microsoft chief executive Steve Ballmer is on eighth number with net worth of $22.7 billion. He is the current owner of the Los Angeles Clippers, an American professional basketball team. (BCCL)

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Laurene Powell Jobs, widow of Apple co-founder Steve Jobs is on number nine with a net worth of $21.4 billion. She is a co-founder of natural foods company, Terravera. (Getty Images)

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