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Finding the Fourth Proportional to 225,627.59, 338,353.89 and 120,389.15

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Solution

The fourth proportional to 225,627.59, 338,353.89 and 120,389.15 is: 180,537.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,627.59 : 338,353.89 = 120,389.15 : x
  2. Step 2: Convert to fraction form
    225,627.59/338,353.89 = 120,389.15/x
  3. Step 3: Cross multiply
    225,627.59x = 338,353.89 × 120,389.15
  4. Step 4: Simplify right side
    225,627.59x = 40,734,135,524.52
  5. Step 5: Solve for x
    x = 40,734,135,524.52/225,627.59
  6. Step 6: Final answer
    x = 180,537.04

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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.