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Finding the Fourth Proportional to 125,067.96, 172,593.55 and 67,707

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Solution

The fourth proportional to 125,067.96, 172,593.55 and 67,707 is: 93,435.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,067.96 : 172,593.55 = 67,707 : x
  2. Step 2: Convert to fraction form
    125,067.96/172,593.55 = 67,707/x
  3. Step 3: Cross multiply
    125,067.96x = 172,593.55 × 67,707
  4. Step 4: Simplify right side
    125,067.96x = 11,685,791,489.85
  5. Step 5: Solve for x
    x = 11,685,791,489.85/125,067.96
  6. Step 6: Final answer
    x = 93,435.53

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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.