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Finding the Fourth Proportional to 92,115.70, 138,092.55 and 62,437.30

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Solution

The fourth proportional to 92,115.70, 138,092.55 and 62,437.30 is: 93,601.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,115.70 : 138,092.55 = 62,437.30 : x
  2. Step 2: Convert to fraction form
    92,115.70/138,092.55 = 62,437.30/x
  3. Step 3: Cross multiply
    92,115.70x = 138,092.55 × 62,437.30
  4. Step 4: Simplify right side
    92,115.70x = 8,622,125,972.12
  5. Step 5: Solve for x
    x = 8,622,125,972.12/92,115.70
  6. Step 6: Final answer
    x = 93,601.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.