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Finding the Fourth Proportional to 83,371.94, 124,987.83 and 67,537.71

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Solution

The fourth proportional to 83,371.94, 124,987.83 and 67,537.71 is: 101,249.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,371.94 : 124,987.83 = 67,537.71 : x
  2. Step 2: Convert to fraction form
    83,371.94/124,987.83 = 67,537.71/x
  3. Step 3: Cross multiply
    83,371.94x = 124,987.83 × 67,537.71
  4. Step 4: Simplify right side
    83,371.94x = 8,441,391,503.60
  5. Step 5: Solve for x
    x = 8,441,391,503.60/83,371.94
  6. Step 6: Final answer
    x = 101,249.79

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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.