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Finding the Fourth Proportional to 60,712.68, 83,753.43 and 40,575.90

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Solution

The fourth proportional to 60,712.68, 83,753.43 and 40,575.90 is: 55,974.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,712.68 : 83,753.43 = 40,575.90 : x
  2. Step 2: Convert to fraction form
    60,712.68/83,753.43 = 40,575.90/x
  3. Step 3: Cross multiply
    60,712.68x = 83,753.43 × 40,575.90
  4. Step 4: Simplify right side
    60,712.68x = 3,398,370,800.34
  5. Step 5: Solve for x
    x = 3,398,370,800.34/60,712.68
  6. Step 6: Final answer
    x = 55,974.65

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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.