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Finding the Fourth Proportional to 57,959.70, 86,830.20 and 54,023.10

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Solution

The fourth proportional to 57,959.70, 86,830.20 and 54,023.10 is: 80,932.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,959.70 : 86,830.20 = 54,023.10 : x
  2. Step 2: Convert to fraction form
    57,959.70/86,830.20 = 54,023.10/x
  3. Step 3: Cross multiply
    57,959.70x = 86,830.20 × 54,023.10
  4. Step 4: Simplify right side
    57,959.70x = 4,690,836,577.62
  5. Step 5: Solve for x
    x = 4,690,836,577.62/57,959.70
  6. Step 6: Final answer
    x = 80,932.73

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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.