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Finding the Fourth Proportional to 252.16, 347.86 and 169.29

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Solution

The fourth proportional to 252.16, 347.86 and 169.29 is: 233.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.16 : 347.86 = 169.29 : x
  2. Step 2: Convert to fraction form
    252.16/347.86 = 169.29/x
  3. Step 3: Cross multiply
    252.16x = 347.86 × 169.29
  4. Step 4: Simplify right side
    252.16x = 58,889.22
  5. Step 5: Solve for x
    x = 58,889.22/252.16
  6. Step 6: Final answer
    x = 233.54

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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.