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Finding the Fourth Proportional to 332,143.92, 498,455.28 and 132,348.96

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Solution

The fourth proportional to 332,143.92, 498,455.28 and 132,348.96 is: 198,618.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,143.92 : 498,455.28 = 132,348.96 : x
  2. Step 2: Convert to fraction form
    332,143.92/498,455.28 = 132,348.96/x
  3. Step 3: Cross multiply
    332,143.92x = 498,455.28 × 132,348.96
  4. Step 4: Simplify right side
    332,143.92x = 65,970,037,914.51
  5. Step 5: Solve for x
    x = 65,970,037,914.51/332,143.92
  6. Step 6: Final answer
    x = 198,618.83

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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.