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Finding the Fourth Proportional to 221,605.60, 332,467.80 and 88,579.30

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Solution

The fourth proportional to 221,605.60, 332,467.80 and 88,579.30 is: 132,892.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,605.60 : 332,467.80 = 88,579.30 : x
  2. Step 2: Convert to fraction form
    221,605.60/332,467.80 = 88,579.30/x
  3. Step 3: Cross multiply
    221,605.60x = 332,467.80 × 88,579.30
  4. Step 4: Simplify right side
    221,605.60x = 29,449,764,996.54
  5. Step 5: Solve for x
    x = 29,449,764,996.54/221,605.60
  6. Step 6: Final answer
    x = 132,892.69

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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.