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Finding the Fourth Proportional to 175.46, 263.20 and 67.24

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Solution

The fourth proportional to 175.46, 263.20 and 67.24 is: 100.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.46 : 263.20 = 67.24 : x
  2. Step 2: Convert to fraction form
    175.46/263.20 = 67.24/x
  3. Step 3: Cross multiply
    175.46x = 263.20 × 67.24
  4. Step 4: Simplify right side
    175.46x = 17,697.57
  5. Step 5: Solve for x
    x = 17,697.57/175.46
  6. Step 6: Final answer
    x = 100.86

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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.