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Finding the Fourth Proportional to 137,624.40, 206,436.60 and 132,375.60

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Solution

The fourth proportional to 137,624.40, 206,436.60 and 132,375.60 is: 198,563.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,624.40 : 206,436.60 = 132,375.60 : x
  2. Step 2: Convert to fraction form
    137,624.40/206,436.60 = 132,375.60/x
  3. Step 3: Cross multiply
    137,624.40x = 206,436.60 × 132,375.60
  4. Step 4: Simplify right side
    137,624.40x = 27,327,168,786.96
  5. Step 5: Solve for x
    x = 27,327,168,786.96/137,624.40
  6. Step 6: Final answer
    x = 198,563.40

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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.