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Finding the Fourth Proportional to 132,846.48, 199,321.56 and 76,656.92

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Solution

The fourth proportional to 132,846.48, 199,321.56 and 76,656.92 is: 115,015.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,846.48 : 199,321.56 = 76,656.92 : x
  2. Step 2: Convert to fraction form
    132,846.48/199,321.56 = 76,656.92/x
  3. Step 3: Cross multiply
    132,846.48x = 199,321.56 × 76,656.92
  4. Step 4: Simplify right side
    132,846.48x = 15,279,375,882.59
  5. Step 5: Solve for x
    x = 15,279,375,882.59/132,846.48
  6. Step 6: Final answer
    x = 115,015.29

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1.5x scale

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.