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Finding the Fourth Proportional to 185,559.56, 278,389.56 and 132,318.80

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Solution

The fourth proportional to 185,559.56, 278,389.56 and 132,318.80 is: 198,514.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,559.56 : 278,389.56 = 132,318.80 : x
  2. Step 2: Convert to fraction form
    185,559.56/278,389.56 = 132,318.80/x
  3. Step 3: Cross multiply
    185,559.56x = 278,389.56 × 132,318.80
  4. Step 4: Simplify right side
    185,559.56x = 36,836,172,511.73
  5. Step 5: Solve for x
    x = 36,836,172,511.73/185,559.56
  6. Step 6: Final answer
    x = 198,514.01

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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.