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Finding the Fourth Proportional to 79,381.48, 119,064.97 and 26,791.42

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Solution

The fourth proportional to 79,381.48, 119,064.97 and 26,791.42 is: 40,184.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,381.48 : 119,064.97 = 26,791.42 : x
  2. Step 2: Convert to fraction form
    79,381.48/119,064.97 = 26,791.42/x
  3. Step 3: Cross multiply
    79,381.48x = 119,064.97 × 26,791.42
  4. Step 4: Simplify right side
    79,381.48x = 3,189,919,618.56
  5. Step 5: Solve for x
    x = 3,189,919,618.56/79,381.48
  6. Step 6: Final answer
    x = 40,184.68

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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.