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Finding the Fourth Proportional to 312,755.25, 469,128.62 and 76,098.16

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Solution

The fourth proportional to 312,755.25, 469,128.62 and 76,098.16 is: 114,146.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,755.25 : 469,128.62 = 76,098.16 : x
  2. Step 2: Convert to fraction form
    312,755.25/469,128.62 = 76,098.16/x
  3. Step 3: Cross multiply
    312,755.25x = 469,128.62 × 76,098.16
  4. Step 4: Simplify right side
    312,755.25x = 35,699,822,059.21
  5. Step 5: Solve for x
    x = 35,699,822,059.21/312,755.25
  6. Step 6: Final answer
    x = 114,146.20

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