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Finding the Fourth Proportional to 125,668.73, 173,418.45 and 69,079.70

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Solution

The fourth proportional to 125,668.73, 173,418.45 and 69,079.70 is: 95,327.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,668.73 : 173,418.45 = 69,079.70 : x
  2. Step 2: Convert to fraction form
    125,668.73/173,418.45 = 69,079.70/x
  3. Step 3: Cross multiply
    125,668.73x = 173,418.45 × 69,079.70
  4. Step 4: Simplify right side
    125,668.73x = 11,979,694,500.47
  5. Step 5: Solve for x
    x = 11,979,694,500.47/125,668.73
  6. Step 6: Final answer
    x = 95,327.57

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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.