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Finding the Fourth Proportional to 132,024.80, 198,085.80 and 43,281.20

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Solution

The fourth proportional to 132,024.80, 198,085.80 and 43,281.20 is: 64,937.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,024.80 : 198,085.80 = 43,281.20 : x
  2. Step 2: Convert to fraction form
    132,024.80/198,085.80 = 43,281.20/x
  3. Step 3: Cross multiply
    132,024.80x = 198,085.80 × 43,281.20
  4. Step 4: Simplify right side
    132,024.80x = 8,573,391,126.96
  5. Step 5: Solve for x
    x = 8,573,391,126.96/132,024.80
  6. Step 6: Final answer
    x = 64,937.73

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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.