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Finding the Fourth Proportional to 221,672.44, 332,610.90 and 137,531.44

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Solution

The fourth proportional to 221,672.44, 332,610.90 and 137,531.44 is: 206,360.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,672.44 : 332,610.90 = 137,531.44 : x
  2. Step 2: Convert to fraction form
    221,672.44/332,610.90 = 137,531.44/x
  3. Step 3: Cross multiply
    221,672.44x = 332,610.90 × 137,531.44
  4. Step 4: Simplify right side
    221,672.44x = 45,744,456,036.70
  5. Step 5: Solve for x
    x = 45,744,456,036.70/221,672.44
  6. Step 6: Final answer
    x = 206,360.59

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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.