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Finding the Fourth Proportional to 99,250.92, 148,860.74 and 82,491.54

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Solution

The fourth proportional to 99,250.92, 148,860.74 and 82,491.54 is: 123,724.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,250.92 : 148,860.74 = 82,491.54 : x
  2. Step 2: Convert to fraction form
    99,250.92/148,860.74 = 82,491.54/x
  3. Step 3: Cross multiply
    99,250.92x = 148,860.74 × 82,491.54
  4. Step 4: Simplify right side
    99,250.92x = 12,279,751,275.68
  5. Step 5: Solve for x
    x = 12,279,751,275.68/99,250.92
  6. Step 6: Final answer
    x = 123,724.31

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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.