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Finding the Fourth Proportional to 168,578.80, 252,868.20 and 89,846.80

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Solution

The fourth proportional to 168,578.80, 252,868.20 and 89,846.80 is: 134,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,578.80 : 252,868.20 = 89,846.80 : x
  2. Step 2: Convert to fraction form
    168,578.80/252,868.20 = 89,846.80/x
  3. Step 3: Cross multiply
    168,578.80x = 252,868.20 × 89,846.80
  4. Step 4: Simplify right side
    168,578.80x = 22,719,398,591.76
  5. Step 5: Solve for x
    x = 22,719,398,591.76/168,578.80
  6. Step 6: Final answer
    x = 134,770.20

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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.