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Finding the Fourth Proportional to 202.14, 302.38 and 167.97

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Solution

The fourth proportional to 202.14, 302.38 and 167.97 is: 251.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.14 : 302.38 = 167.97 : x
  2. Step 2: Convert to fraction form
    202.14/302.38 = 167.97/x
  3. Step 3: Cross multiply
    202.14x = 302.38 × 167.97
  4. Step 4: Simplify right side
    202.14x = 50,790.77
  5. Step 5: Solve for x
    x = 50,790.77/202.14
  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.