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Finding the Fourth Proportional to 132,251.80, 198,491.10 and 53,422.60

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Solution

The fourth proportional to 132,251.80, 198,491.10 and 53,422.60 is: 80,179.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,251.80 : 198,491.10 = 53,422.60 : x
  2. Step 2: Convert to fraction form
    132,251.80/198,491.10 = 53,422.60/x
  3. Step 3: Cross multiply
    132,251.80x = 198,491.10 × 53,422.60
  4. Step 4: Simplify right side
    132,251.80x = 10,603,910,638.86
  5. Step 5: Solve for x
    x = 10,603,910,638.86/132,251.80
  6. Step 6: Final answer
    x = 80,179.71

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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.