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Finding the Fourth Proportional to 242.44, 334.44 and 167.72

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Solution

The fourth proportional to 242.44, 334.44 and 167.72 is: 231.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.44 : 334.44 = 167.72 : x
  2. Step 2: Convert to fraction form
    242.44/334.44 = 167.72/x
  3. Step 3: Cross multiply
    242.44x = 334.44 × 167.72
  4. Step 4: Simplify right side
    242.44x = 56,092.28
  5. Step 5: Solve for x
    x = 56,092.28/242.44
  6. Step 6: Final answer
    x = 231.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.