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Finding the Fourth Proportional to 96,660.60, 144,818.10 and 81,799.80

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Solution

The fourth proportional to 96,660.60, 144,818.10 and 81,799.80 is: 122,553.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,660.60 : 144,818.10 = 81,799.80 : x
  2. Step 2: Convert to fraction form
    96,660.60/144,818.10 = 81,799.80/x
  3. Step 3: Cross multiply
    96,660.60x = 144,818.10 × 81,799.80
  4. Step 4: Simplify right side
    96,660.60x = 11,846,091,616.38
  5. Step 5: Solve for x
    x = 11,846,091,616.38/96,660.60
  6. Step 6: Final answer
    x = 122,553.47

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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.