The Richest People on the Earth for 2017

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 Brother of Charles Koch, David Koch is the Executive Vice President of Koch Industries. Valued the same as his brother at $47.9 billion, David is the sixth richest person in the world. David also owns 42% of the conglomerate that the brother inherited from their father and then expanded.

8. David Koch – Koch Industries, net worth: $47.9 billion

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