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Finding the Fourth Proportional to 132,204.80, 198,460.80 and 69,843.20

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Solution

The fourth proportional to 132,204.80, 198,460.80 and 69,843.20 is: 104,845.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,204.80 : 198,460.80 = 69,843.20 : x
  2. Step 2: Convert to fraction form
    132,204.80/198,460.80 = 69,843.20/x
  3. Step 3: Cross multiply
    132,204.80x = 198,460.80 × 69,843.20
  4. Step 4: Simplify right side
    132,204.80x = 13,861,137,346.56
  5. Step 5: Solve for x
    x = 13,861,137,346.56/132,204.80
  6. Step 6: Final answer
    x = 104,845.95

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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.