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Finding the Fourth Proportional to 221,366.70, 332,092.72 and 71,644.14

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Solution

The fourth proportional to 221,366.70, 332,092.72 and 71,644.14 is: 107,480.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,366.70 : 332,092.72 = 71,644.14 : x
  2. Step 2: Convert to fraction form
    221,366.70/332,092.72 = 71,644.14/x
  3. Step 3: Cross multiply
    221,366.70x = 332,092.72 × 71,644.14
  4. Step 4: Simplify right side
    221,366.70x = 23,792,497,324.66
  5. Step 5: Solve for x
    x = 23,792,497,324.66/221,366.70
  6. Step 6: Final answer
    x = 107,480.02

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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.