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Finding the Fourth Proportional to 92,549.70, 138,743.55 and 62,871.30

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Solution

The fourth proportional to 92,549.70, 138,743.55 and 62,871.30 is: 94,251.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,549.70 : 138,743.55 = 62,871.30 : x
  2. Step 2: Convert to fraction form
    92,549.70/138,743.55 = 62,871.30/x
  3. Step 3: Cross multiply
    92,549.70x = 138,743.55 × 62,871.30
  4. Step 4: Simplify right side
    92,549.70x = 8,722,987,355.12
  5. Step 5: Solve for x
    x = 8,722,987,355.12/92,549.70
  6. Step 6: Final answer
    x = 94,251.92

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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.