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Finding the Fourth Proportional to 79,593.91, 109,735.50 and 57,770.59

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Solution

The fourth proportional to 79,593.91, 109,735.50 and 57,770.59 is: 79,647.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,593.91 : 109,735.50 = 57,770.59 : x
  2. Step 2: Convert to fraction form
    79,593.91/109,735.50 = 57,770.59/x
  3. Step 3: Cross multiply
    79,593.91x = 109,735.50 × 57,770.59
  4. Step 4: Simplify right side
    79,593.91x = 6,339,484,578.95
  5. Step 5: Solve for x
    x = 6,339,484,578.95/79,593.91
  6. Step 6: Final answer
    x = 79,647.86

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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.