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Finding the Fourth Proportional to 248.27, 372.53 and 111.44

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Solution

The fourth proportional to 248.27, 372.53 and 111.44 is: 167.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.27 : 372.53 = 111.44 : x
  2. Step 2: Convert to fraction form
    248.27/372.53 = 111.44/x
  3. Step 3: Cross multiply
    248.27x = 372.53 × 111.44
  4. Step 4: Simplify right side
    248.27x = 41,515.95
  5. Step 5: Solve for x
    x = 41,515.95/248.27
  6. Step 6: Final answer
    x = 167.22

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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.