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Finding the Fourth Proportional to 492.24, 738.45 and 167.64

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Solution

The fourth proportional to 492.24, 738.45 and 167.64 is: 251.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    492.24 : 738.45 = 167.64 : x
  2. Step 2: Convert to fraction form
    492.24/738.45 = 167.64/x
  3. Step 3: Cross multiply
    492.24x = 738.45 × 167.64
  4. Step 4: Simplify right side
    492.24x = 123,793.76
  5. Step 5: Solve for x
    x = 123,793.76/492.24
  6. Step 6: Final answer
    x = 251.49

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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.