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Finding the Fourth Proportional to 252.54, 348.36 and 197.26

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Solution

The fourth proportional to 252.54, 348.36 and 197.26 is: 272.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.54 : 348.36 = 197.26 : x
  2. Step 2: Convert to fraction form
    252.54/348.36 = 197.26/x
  3. Step 3: Cross multiply
    252.54x = 348.36 × 197.26
  4. Step 4: Simplify right side
    252.54x = 68,717.49
  5. Step 5: Solve for x
    x = 68,717.49/252.54
  6. Step 6: Final answer
    x = 272.11

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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.