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Finding the Fourth Proportional to 221,392.40, 332,248.16 and 88,195.60

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Solution

The fourth proportional to 221,392.40, 332,248.16 and 88,195.60 is: 132,356.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,392.40 : 332,248.16 = 88,195.60 : x
  2. Step 2: Convert to fraction form
    221,392.40/332,248.16 = 88,195.60/x
  3. Step 3: Cross multiply
    221,392.40x = 332,248.16 × 88,195.60
  4. Step 4: Simplify right side
    221,392.40x = 29,302,825,820.10
  5. Step 5: Solve for x
    x = 29,302,825,820.10/221,392.40
  6. Step 6: Final answer
    x = 132,356.96

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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.