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Finding the Fourth Proportional to 532.99, 799.20 and 167.68

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Solution

The fourth proportional to 532.99, 799.20 and 167.68 is: 251.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.99 : 799.20 = 167.68 : x
  2. Step 2: Convert to fraction form
    532.99/799.20 = 167.68/x
  3. Step 3: Cross multiply
    532.99x = 799.20 × 167.68
  4. Step 4: Simplify right side
    532.99x = 134,010.28
  5. Step 5: Solve for x
    x = 134,010.28/532.99
  6. Step 6: Final answer
    x = 251.43

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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.