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Finding the Fourth Proportional to 67,421.92, 101,264.12 and 54,951.16

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Solution

The fourth proportional to 67,421.92, 101,264.12 and 54,951.16 is: 82,533.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,421.92 : 101,264.12 = 54,951.16 : x
  2. Step 2: Convert to fraction form
    67,421.92/101,264.12 = 54,951.16/x
  3. Step 3: Cross multiply
    67,421.92x = 101,264.12 × 54,951.16
  4. Step 4: Simplify right side
    67,421.92x = 5,564,580,860.38
  5. Step 5: Solve for x
    x = 5,564,580,860.38/67,421.92
  6. Step 6: Final answer
    x = 82,533.71

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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.