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Finding the Fourth Proportional to 337,147.20, 505,720.80 and 160,000.20

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Solution

The fourth proportional to 337,147.20, 505,720.80 and 160,000.20 is: 240,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,147.20 : 505,720.80 = 160,000.20 : x
  2. Step 2: Convert to fraction form
    337,147.20/505,720.80 = 160,000.20/x
  3. Step 3: Cross multiply
    337,147.20x = 505,720.80 × 160,000.20
  4. Step 4: Simplify right side
    337,147.20x = 80,915,429,144.16
  5. Step 5: Solve for x
    x = 80,915,429,144.16/337,147.20
  6. Step 6: Final answer
    x = 240,000.30

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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.