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Finding the Fourth Proportional to 249.99, 345.24 and 167.43

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Solution

The fourth proportional to 249.99, 345.24 and 167.43 is: 231.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.99 : 345.24 = 167.43 : x
  2. Step 2: Convert to fraction form
    249.99/345.24 = 167.43/x
  3. Step 3: Cross multiply
    249.99x = 345.24 × 167.43
  4. Step 4: Simplify right side
    249.99x = 57,803.53
  5. Step 5: Solve for x
    x = 57,803.53/249.99
  6. Step 6: Final answer
    x = 231.22

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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.