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Finding the Fourth Proportional to 125,614.62, 173,357.82 and 71,916.48

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Solution

The fourth proportional to 125,614.62, 173,357.82 and 71,916.48 is: 99,250.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,614.62 : 173,357.82 = 71,916.48 : x
  2. Step 2: Convert to fraction form
    125,614.62/173,357.82 = 71,916.48/x
  3. Step 3: Cross multiply
    125,614.62x = 173,357.82 × 71,916.48
  4. Step 4: Simplify right side
    125,614.62x = 12,467,284,194.87
  5. Step 5: Solve for x
    x = 12,467,284,194.87/125,614.62
  6. Step 6: Final answer
    x = 99,250.26

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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.