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Finding the Fourth Proportional to 91,687.83, 137,532.96 and 29,358.33

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Solution

The fourth proportional to 91,687.83, 137,532.96 and 29,358.33 is: 44,037.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,687.83 : 137,532.96 = 29,358.33 : x
  2. Step 2: Convert to fraction form
    91,687.83/137,532.96 = 29,358.33/x
  3. Step 3: Cross multiply
    91,687.83x = 137,532.96 × 29,358.33
  4. Step 4: Simplify right side
    91,687.83x = 4,037,738,025.56
  5. Step 5: Solve for x
    x = 4,037,738,025.56/91,687.83
  6. Step 6: Final answer
    x = 44,037.88

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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.