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Finding the Fourth Proportional to 311,906.05, 467,854.75 and 75,246.73

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Solution

The fourth proportional to 311,906.05, 467,854.75 and 75,246.73 is: 112,869.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,906.05 : 467,854.75 = 75,246.73 : x
  2. Step 2: Convert to fraction form
    311,906.05/467,854.75 = 75,246.73/x
  3. Step 3: Cross multiply
    311,906.05x = 467,854.75 × 75,246.73
  4. Step 4: Simplify right side
    311,906.05x = 35,204,540,052.47
  5. Step 5: Solve for x
    x = 35,204,540,052.47/311,906.05
  6. Step 6: Final answer
    x = 112,869.05

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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.