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Finding the Fourth Proportional to 167,819.40, 252,020.70 and 89,087.40

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Solution

The fourth proportional to 167,819.40, 252,020.70 and 89,087.40 is: 133,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,819.40 : 252,020.70 = 89,087.40 : x
  2. Step 2: Convert to fraction form
    167,819.40/252,020.70 = 89,087.40/x
  3. Step 3: Cross multiply
    167,819.40x = 252,020.70 × 89,087.40
  4. Step 4: Simplify right side
    167,819.40x = 22,451,868,909.18
  5. Step 5: Solve for x
    x = 22,451,868,909.18/167,819.40
  6. Step 6: Final answer
    x = 133,785.90

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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.