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Finding the Fourth Proportional to 132,480.66, 199,122.46 and 87,654.92

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Solution

The fourth proportional to 132,480.66, 199,122.46 and 87,654.92 is: 131,748.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,480.66 : 199,122.46 = 87,654.92 : x
  2. Step 2: Convert to fraction form
    132,480.66/199,122.46 = 87,654.92/x
  3. Step 3: Cross multiply
    132,480.66x = 199,122.46 × 87,654.92
  4. Step 4: Simplify right side
    132,480.66x = 17,454,063,301.50
  5. Step 5: Solve for x
    x = 17,454,063,301.50/132,480.66
  6. Step 6: Final answer
    x = 131,748.01

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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.