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Finding the Fourth Proportional to 68,910.75, 103,327.92 and 26,764.83

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Solution

The fourth proportional to 68,910.75, 103,327.92 and 26,764.83 is: 40,132.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,910.75 : 103,327.92 = 26,764.83 : x
  2. Step 2: Convert to fraction form
    68,910.75/103,327.92 = 26,764.83/x
  3. Step 3: Cross multiply
    68,910.75x = 103,327.92 × 26,764.83
  4. Step 4: Simplify right side
    68,910.75x = 2,765,554,213.05
  5. Step 5: Solve for x
    x = 2,765,554,213.05/68,910.75
  6. Step 6: Final answer
    x = 40,132.41

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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.