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Finding the Fourth Proportional to 263.57, 395.29 and 117.24

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Solution

The fourth proportional to 263.57, 395.29 and 117.24 is: 175.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.57 : 395.29 = 117.24 : x
  2. Step 2: Convert to fraction form
    263.57/395.29 = 117.24/x
  3. Step 3: Cross multiply
    263.57x = 395.29 × 117.24
  4. Step 4: Simplify right side
    263.57x = 46,343.80
  5. Step 5: Solve for x
    x = 46,343.80/263.57
  6. Step 6: Final answer
    x = 175.83

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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.