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Finding the Fourth Proportional to 492.16, 738.20 and 167.52

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Solution

The fourth proportional to 492.16, 738.20 and 167.52 is: 251.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    492.16 : 738.20 = 167.52 : x
  2. Step 2: Convert to fraction form
    492.16/738.20 = 167.52/x
  3. Step 3: Cross multiply
    492.16x = 738.20 × 167.52
  4. Step 4: Simplify right side
    492.16x = 123,663.26
  5. Step 5: Solve for x
    x = 123,663.26/492.16
  6. Step 6: Final answer
    x = 251.27

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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.