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Finding the Fourth Proportional to 132,385.62, 198,676.80 and 53,500.54

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Solution

The fourth proportional to 132,385.62, 198,676.80 and 53,500.54 is: 80,290.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,385.62 : 198,676.80 = 53,500.54 : x
  2. Step 2: Convert to fraction form
    132,385.62/198,676.80 = 53,500.54/x
  3. Step 3: Cross multiply
    132,385.62x = 198,676.80 × 53,500.54
  4. Step 4: Simplify right side
    132,385.62x = 10,629,316,085.47
  5. Step 5: Solve for x
    x = 10,629,316,085.47/132,385.62
  6. Step 6: Final answer
    x = 80,290.56

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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.