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Finding the Fourth Proportional to 188,478.60, 282,311.92 and 88,488.96

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Solution

The fourth proportional to 188,478.60, 282,311.92 and 88,488.96 is: 132,542.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,478.60 : 282,311.92 = 88,488.96 : x
  2. Step 2: Convert to fraction form
    188,478.60/282,311.92 = 88,488.96/x
  3. Step 3: Cross multiply
    188,478.60x = 282,311.92 × 88,488.96
  4. Step 4: Simplify right side
    188,478.60x = 24,981,488,196.40
  5. Step 5: Solve for x
    x = 24,981,488,196.40/188,478.60
  6. Step 6: Final answer
    x = 132,542.84

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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.