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Finding the Fourth Proportional to 269,163.20, 403,399.20 and 206,523.20

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Solution

The fourth proportional to 269,163.20, 403,399.20 and 206,523.20 is: 309,519.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,163.20 : 403,399.20 = 206,523.20 : x
  2. Step 2: Convert to fraction form
    269,163.20/403,399.20 = 206,523.20/x
  3. Step 3: Cross multiply
    269,163.20x = 403,399.20 × 206,523.20
  4. Step 4: Simplify right side
    269,163.20x = 83,311,293,661.44
  5. Step 5: Solve for x
    x = 83,311,293,661.44/269,163.20
  6. Step 6: Final answer
    x = 309,519.63

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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.