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Finding the Fourth Proportional to 269,468.20, 403,764.90 and 169,449.40

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Solution

The fourth proportional to 269,468.20, 403,764.90 and 169,449.40 is: 253,899.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,468.20 : 403,764.90 = 169,449.40 : x
  2. Step 2: Convert to fraction form
    269,468.20/403,764.90 = 169,449.40/x
  3. Step 3: Cross multiply
    269,468.20x = 403,764.90 × 169,449.40
  4. Step 4: Simplify right side
    269,468.20x = 68,417,720,046.06
  5. Step 5: Solve for x
    x = 68,417,720,046.06/269,468.20
  6. Step 6: Final answer
    x = 253,899.05

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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.