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Finding the Fourth Proportional to 168,149.70, 252,141.90 and 55,791.75

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Solution

The fourth proportional to 168,149.70, 252,141.90 and 55,791.75 is: 83,660.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,149.70 : 252,141.90 = 55,791.75 : x
  2. Step 2: Convert to fraction form
    168,149.70/252,141.90 = 55,791.75/x
  3. Step 3: Cross multiply
    168,149.70x = 252,141.90 × 55,791.75
  4. Step 4: Simplify right side
    168,149.70x = 14,067,437,849.33
  5. Step 5: Solve for x
    x = 14,067,437,849.33/168,149.70
  6. Step 6: Final answer
    x = 83,660.20

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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.