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Finding the Fourth Proportional to 492.24, 738.21 and 167.54

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Solution

The fourth proportional to 492.24, 738.21 and 167.54 is: 251.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    492.24 : 738.21 = 167.54 : x
  2. Step 2: Convert to fraction form
    492.24/738.21 = 167.54/x
  3. Step 3: Cross multiply
    492.24x = 738.21 × 167.54
  4. Step 4: Simplify right side
    492.24x = 123,676.64
  5. Step 5: Solve for x
    x = 123,676.64/492.24
  6. Step 6: Final answer
    x = 251.25

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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.