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Finding the Fourth Proportional to 311,105.96, 466,555.14 and 121,517.15

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Solution

The fourth proportional to 311,105.96, 466,555.14 and 121,517.15 is: 182,235.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,105.96 : 466,555.14 = 121,517.15 : x
  2. Step 2: Convert to fraction form
    311,105.96/466,555.14 = 121,517.15/x
  3. Step 3: Cross multiply
    311,105.96x = 466,555.14 × 121,517.15
  4. Step 4: Simplify right side
    311,105.96x = 56,694,450,930.65
  5. Step 5: Solve for x
    x = 56,694,450,930.65/311,105.96
  6. Step 6: Final answer
    x = 182,235.18

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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.