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Finding the Fourth Proportional to 221,481.60, 332,061.42 and 88,321.92

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Solution

The fourth proportional to 221,481.60, 332,061.42 and 88,321.92 is: 132,418.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,481.60 : 332,061.42 = 88,321.92 : x
  2. Step 2: Convert to fraction form
    221,481.60/332,061.42 = 88,321.92/x
  3. Step 3: Cross multiply
    221,481.60x = 332,061.42 × 88,321.92
  4. Step 4: Simplify right side
    221,481.60x = 29,328,302,172.33
  5. Step 5: Solve for x
    x = 29,328,302,172.33/221,481.60
  6. Step 6: Final answer
    x = 132,418.68

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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.