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Finding the Fourth Proportional to 67,413, 101,132.44 and 25,856.76

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Solution

The fourth proportional to 67,413, 101,132.44 and 25,856.76 is: 38,790.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,413 : 101,132.44 = 25,856.76 : x
  2. Step 2: Convert to fraction form
    67,413/101,132.44 = 25,856.76/x
  3. Step 3: Cross multiply
    67,413x = 101,132.44 × 25,856.76
  4. Step 4: Simplify right side
    67,413x = 2,614,957,229.29
  5. Step 5: Solve for x
    x = 2,614,957,229.29/67,413
  6. Step 6: Final answer
    x = 38,790.10

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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.