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Finding the Fourth Proportional to 113,175.54, 156,165.57 and 62,874.54

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Solution

The fourth proportional to 113,175.54, 156,165.57 and 62,874.54 is: 86,757.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,175.54 : 156,165.57 = 62,874.54 : x
  2. Step 2: Convert to fraction form
    113,175.54/156,165.57 = 62,874.54/x
  3. Step 3: Cross multiply
    113,175.54x = 156,165.57 × 62,874.54
  4. Step 4: Simplify right side
    113,175.54x = 9,818,838,377.59
  5. Step 5: Solve for x
    x = 9,818,838,377.59/113,175.54
  6. Step 6: Final answer
    x = 86,757.60

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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.