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Finding the Fourth Proportional to 79,312.87, 119,022.41 and 29,393.38

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Solution

The fourth proportional to 79,312.87, 119,022.41 and 29,393.38 is: 44,109.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,312.87 : 119,022.41 = 29,393.38 : x
  2. Step 2: Convert to fraction form
    79,312.87/119,022.41 = 29,393.38/x
  3. Step 3: Cross multiply
    79,312.87x = 119,022.41 × 29,393.38
  4. Step 4: Simplify right side
    79,312.87x = 3,498,471,147.91
  5. Step 5: Solve for x
    x = 3,498,471,147.91/79,312.87
  6. Step 6: Final answer
    x = 44,109.75

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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.