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Finding the Fourth Proportional to 532.72, 799.21 and 167.50

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Solution

The fourth proportional to 532.72, 799.21 and 167.50 is: 251.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.72 : 799.21 = 167.50 : x
  2. Step 2: Convert to fraction form
    532.72/799.21 = 167.50/x
  3. Step 3: Cross multiply
    532.72x = 799.21 × 167.50
  4. Step 4: Simplify right side
    532.72x = 133,863.68
  5. Step 5: Solve for x
    x = 133,863.68/532.72
  6. Step 6: Final answer
    x = 251.29

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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.