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Finding the Fourth Proportional to 206,891.40, 310,337.10 and 88,793.40

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Solution

The fourth proportional to 206,891.40, 310,337.10 and 88,793.40 is: 133,190.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,891.40 : 310,337.10 = 88,793.40 : x
  2. Step 2: Convert to fraction form
    206,891.40/310,337.10 = 88,793.40/x
  3. Step 3: Cross multiply
    206,891.40x = 310,337.10 × 88,793.40
  4. Step 4: Simplify right side
    206,891.40x = 27,555,886,255.14
  5. Step 5: Solve for x
    x = 27,555,886,255.14/206,891.40
  6. Step 6: Final answer
    x = 133,190.10

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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.