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Finding the Fourth Proportional to 87,794.70, 131,711.58 and 34,491.84

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Solution

The fourth proportional to 87,794.70, 131,711.58 and 34,491.84 is: 51,745.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,794.70 : 131,711.58 = 34,491.84 : x
  2. Step 2: Convert to fraction form
    87,794.70/131,711.58 = 34,491.84/x
  3. Step 3: Cross multiply
    87,794.70x = 131,711.58 × 34,491.84
  4. Step 4: Simplify right side
    87,794.70x = 4,542,974,743.51
  5. Step 5: Solve for x
    x = 4,542,974,743.51/87,794.70
  6. Step 6: Final answer
    x = 51,745.43

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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.