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Finding the Fourth Proportional to 125,791.76, 173,614.92 and 75,494

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Solution

The fourth proportional to 125,791.76, 173,614.92 and 75,494 is: 104,195.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,791.76 : 173,614.92 = 75,494 : x
  2. Step 2: Convert to fraction form
    125,791.76/173,614.92 = 75,494/x
  3. Step 3: Cross multiply
    125,791.76x = 173,614.92 × 75,494
  4. Step 4: Simplify right side
    125,791.76x = 13,106,884,770.48
  5. Step 5: Solve for x
    x = 13,106,884,770.48/125,791.76
  6. Step 6: Final answer
    x = 104,195.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.