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Finding the Fourth Proportional to 408,154.55, 612,233.17 and 123,847.52

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Solution

The fourth proportional to 408,154.55, 612,233.17 and 123,847.52 is: 185,771.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,154.55 : 612,233.17 = 123,847.52 : x
  2. Step 2: Convert to fraction form
    408,154.55/612,233.17 = 123,847.52/x
  3. Step 3: Cross multiply
    408,154.55x = 612,233.17 × 123,847.52
  4. Step 4: Simplify right side
    408,154.55x = 75,823,556,395.45
  5. Step 5: Solve for x
    x = 75,823,556,395.45/408,154.55
  6. Step 6: Final answer
    x = 185,771.68

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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.