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Finding the Fourth Proportional to 79,396.78, 119,019.36 and 29,463.52

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Solution

The fourth proportional to 79,396.78, 119,019.36 and 29,463.52 is: 44,167.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,396.78 : 119,019.36 = 29,463.52 : x
  2. Step 2: Convert to fraction form
    79,396.78/119,019.36 = 29,463.52/x
  3. Step 3: Cross multiply
    79,396.78x = 119,019.36 × 29,463.52
  4. Step 4: Simplify right side
    79,396.78x = 3,506,729,293.75
  5. Step 5: Solve for x
    x = 3,506,729,293.75/79,396.78
  6. Step 6: Final answer
    x = 44,167.15

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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.