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Finding the Fourth Proportional to 263.97, 395.59 and 167.61

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Solution

The fourth proportional to 263.97, 395.59 and 167.61 is: 251.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.97 : 395.59 = 167.61 : x
  2. Step 2: Convert to fraction form
    263.97/395.59 = 167.61/x
  3. Step 3: Cross multiply
    263.97x = 395.59 × 167.61
  4. Step 4: Simplify right side
    263.97x = 66,302.02
  5. Step 5: Solve for x
    x = 66,302.02/263.97
  6. Step 6: Final answer
    x = 251.18

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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.