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Finding the Fourth Proportional to 79,781.16, 119,692.24 and 29,861.97

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Solution

The fourth proportional to 79,781.16, 119,692.24 and 29,861.97 is: 44,800.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,781.16 : 119,692.24 = 29,861.97 : x
  2. Step 2: Convert to fraction form
    79,781.16/119,692.24 = 29,861.97/x
  3. Step 3: Cross multiply
    79,781.16x = 119,692.24 × 29,861.97
  4. Step 4: Simplify right side
    79,781.16x = 3,574,246,173.43
  5. Step 5: Solve for x
    x = 3,574,246,173.43/79,781.16
  6. Step 6: Final answer
    x = 44,800.63

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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.