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Finding the Fourth Proportional to 269,148.80, 403,723.20 and 254,633.60

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Solution

The fourth proportional to 269,148.80, 403,723.20 and 254,633.60 is: 381,950.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,148.80 : 403,723.20 = 254,633.60 : x
  2. Step 2: Convert to fraction form
    269,148.80/403,723.20 = 254,633.60/x
  3. Step 3: Cross multiply
    269,148.80x = 403,723.20 × 254,633.60
  4. Step 4: Simplify right side
    269,148.80x = 102,801,491,819.52
  5. Step 5: Solve for x
    x = 102,801,491,819.52/269,148.80
  6. Step 6: Final answer
    x = 381,950.40

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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.