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Finding the Fourth Proportional to 113,375.87, 156,460.14 and 62,394.47

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Solution

The fourth proportional to 113,375.87, 156,460.14 and 62,394.47 is: 86,105.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,375.87 : 156,460.14 = 62,394.47 : x
  2. Step 2: Convert to fraction form
    113,375.87/156,460.14 = 62,394.47/x
  3. Step 3: Cross multiply
    113,375.87x = 156,460.14 × 62,394.47
  4. Step 4: Simplify right side
    113,375.87x = 9,762,247,511.43
  5. Step 5: Solve for x
    x = 9,762,247,511.43/113,375.87
  6. Step 6: Final answer
    x = 86,105.16

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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.