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Finding the Fourth Proportional to 252.72, 348.93 and 178.25

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Solution

The fourth proportional to 252.72, 348.93 and 178.25 is: 246.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.72 : 348.93 = 178.25 : x
  2. Step 2: Convert to fraction form
    252.72/348.93 = 178.25/x
  3. Step 3: Cross multiply
    252.72x = 348.93 × 178.25
  4. Step 4: Simplify right side
    252.72x = 62,195.03
  5. Step 5: Solve for x
    x = 62,195.03/252.72
  6. Step 6: Final answer
    x = 246.10

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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.