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Finding the Fourth Proportional to 263.92, 395.52 and 161.24

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Solution

The fourth proportional to 263.92, 395.52 and 161.24 is: 241.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.92 : 395.52 = 161.24 : x
  2. Step 2: Convert to fraction form
    263.92/395.52 = 161.24/x
  3. Step 3: Cross multiply
    263.92x = 395.52 × 161.24
  4. Step 4: Simplify right side
    263.92x = 63,773.64
  5. Step 5: Solve for x
    x = 63,773.64/263.92
  6. Step 6: Final answer
    x = 241.64

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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.