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Finding the Fourth Proportional to 381,504.48, 572,230.23 and 115,266.39

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Solution

The fourth proportional to 381,504.48, 572,230.23 and 115,266.39 is: 172,891.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,504.48 : 572,230.23 = 115,266.39 : x
  2. Step 2: Convert to fraction form
    381,504.48/572,230.23 = 115,266.39/x
  3. Step 3: Cross multiply
    381,504.48x = 572,230.23 × 115,266.39
  4. Step 4: Simplify right side
    381,504.48x = 65,958,912,860.97
  5. Step 5: Solve for x
    x = 65,958,912,860.97/381,504.48
  6. Step 6: Final answer
    x = 172,891.58

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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.