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Finding the Fourth Proportional to 221,716.20, 332,477.10 and 88,552.20

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Solution

The fourth proportional to 221,716.20, 332,477.10 and 88,552.20 is: 132,789.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,716.20 : 332,477.10 = 88,552.20 : x
  2. Step 2: Convert to fraction form
    221,716.20/332,477.10 = 88,552.20/x
  3. Step 3: Cross multiply
    221,716.20x = 332,477.10 × 88,552.20
  4. Step 4: Simplify right side
    221,716.20x = 29,441,578,654.62
  5. Step 5: Solve for x
    x = 29,441,578,654.62/221,716.20
  6. Step 6: Final answer
    x = 132,789.48

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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.