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Finding the Fourth Proportional to 121,452.70, 182,179.05 and 88,015.90

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Solution

The fourth proportional to 121,452.70, 182,179.05 and 88,015.90 is: 132,023.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,452.70 : 182,179.05 = 88,015.90 : x
  2. Step 2: Convert to fraction form
    121,452.70/182,179.05 = 88,015.90/x
  3. Step 3: Cross multiply
    121,452.70x = 182,179.05 × 88,015.90
  4. Step 4: Simplify right side
    121,452.70x = 16,034,653,046.90
  5. Step 5: Solve for x
    x = 16,034,653,046.90/121,452.70
  6. Step 6: Final answer
    x = 132,023.85

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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.