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Finding the Fourth Proportional to 113,305.59, 156,358.42 and 62,318.12

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Solution

The fourth proportional to 113,305.59, 156,358.42 and 62,318.12 is: 85,997.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,305.59 : 156,358.42 = 62,318.12 : x
  2. Step 2: Convert to fraction form
    113,305.59/156,358.42 = 62,318.12/x
  3. Step 3: Cross multiply
    113,305.59x = 156,358.42 × 62,318.12
  4. Step 4: Simplify right side
    113,305.59x = 9,743,961,842.98
  5. Step 5: Solve for x
    x = 9,743,961,842.98/113,305.59
  6. Step 6: Final answer
    x = 85,997.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.