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Finding the Fourth Proportional to 68,882.06, 103,224.42 and 39,238.69

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Solution

The fourth proportional to 68,882.06, 103,224.42 and 39,238.69 is: 58,801.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,882.06 : 103,224.42 = 39,238.69 : x
  2. Step 2: Convert to fraction form
    68,882.06/103,224.42 = 39,238.69/x
  3. Step 3: Cross multiply
    68,882.06x = 103,224.42 × 39,238.69
  4. Step 4: Simplify right side
    68,882.06x = 4,050,391,016.81
  5. Step 5: Solve for x
    x = 4,050,391,016.81/68,882.06
  6. Step 6: Final answer
    x = 58,801.83

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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.