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Finding the Fourth Proportional to 132,456.60, 198,903.60 and 88,279.20

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Solution

The fourth proportional to 132,456.60, 198,903.60 and 88,279.20 is: 132,564.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,456.60 : 198,903.60 = 88,279.20 : x
  2. Step 2: Convert to fraction form
    132,456.60/198,903.60 = 88,279.20/x
  3. Step 3: Cross multiply
    132,456.60x = 198,903.60 × 88,279.20
  4. Step 4: Simplify right side
    132,456.60x = 17,559,050,685.12
  5. Step 5: Solve for x
    x = 17,559,050,685.12/132,456.60
  6. Step 6: Final answer
    x = 132,564.56

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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.