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Finding the Fourth Proportional to 79,378.68, 119,067.66 and 23,974.68

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Solution

The fourth proportional to 79,378.68, 119,067.66 and 23,974.68 is: 35,961.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,378.68 : 119,067.66 = 23,974.68 : x
  2. Step 2: Convert to fraction form
    79,378.68/119,067.66 = 23,974.68/x
  3. Step 3: Cross multiply
    79,378.68x = 119,067.66 × 23,974.68
  4. Step 4: Simplify right side
    79,378.68x = 2,854,609,046.85
  5. Step 5: Solve for x
    x = 2,854,609,046.85/79,378.68
  6. Step 6: Final answer
    x = 35,961.91

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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.