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Finding the Fourth Proportional to 297.51, 446.69 and 167.76

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Solution

The fourth proportional to 297.51, 446.69 and 167.76 is: 251.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.51 : 446.69 = 167.76 : x
  2. Step 2: Convert to fraction form
    297.51/446.69 = 167.76/x
  3. Step 3: Cross multiply
    297.51x = 446.69 × 167.76
  4. Step 4: Simplify right side
    297.51x = 74,937.93
  5. Step 5: Solve for x
    x = 74,937.93/297.51
  6. Step 6: Final answer
    x = 251.88

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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.