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Finding the Fourth Proportional to 221,716.80, 332,575.20 and 88,617.60

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Solution

The fourth proportional to 221,716.80, 332,575.20 and 88,617.60 is: 132,926.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,716.80 : 332,575.20 = 88,617.60 : x
  2. Step 2: Convert to fraction form
    221,716.80/332,575.20 = 88,617.60/x
  3. Step 3: Cross multiply
    221,716.80x = 332,575.20 × 88,617.60
  4. Step 4: Simplify right side
    221,716.80x = 29,472,016,043.52
  5. Step 5: Solve for x
    x = 29,472,016,043.52/221,716.80
  6. Step 6: Final answer
    x = 132,926.40

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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.