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Finding the Fourth Proportional to 79,644.34, 119,540.42 and 40,229.14

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Solution

The fourth proportional to 79,644.34, 119,540.42 and 40,229.14 is: 60,381.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,644.34 : 119,540.42 = 40,229.14 : x
  2. Step 2: Convert to fraction form
    79,644.34/119,540.42 = 40,229.14/x
  3. Step 3: Cross multiply
    79,644.34x = 119,540.42 × 40,229.14
  4. Step 4: Simplify right side
    79,644.34x = 4,809,008,291.84
  5. Step 5: Solve for x
    x = 4,809,008,291.84/79,644.34
  6. Step 6: Final answer
    x = 60,381.04

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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.