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Finding the Fourth Proportional to 125,230.38, 187,873.92 and 71,946.96

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Solution

The fourth proportional to 125,230.38, 187,873.92 and 71,946.96 is: 107,936.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,230.38 : 187,873.92 = 71,946.96 : x
  2. Step 2: Convert to fraction form
    125,230.38/187,873.92 = 71,946.96/x
  3. Step 3: Cross multiply
    125,230.38x = 187,873.92 × 71,946.96
  4. Step 4: Simplify right side
    125,230.38x = 13,516,957,407.28
  5. Step 5: Solve for x
    x = 13,516,957,407.28/125,230.38
  6. Step 6: Final answer
    x = 107,936.73

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1.5x scale

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.