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Finding the Fourth Proportional to 169.75, 252.95 and 164.24

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Solution

The fourth proportional to 169.75, 252.95 and 164.24 is: 244.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.75 : 252.95 = 164.24 : x
  2. Step 2: Convert to fraction form
    169.75/252.95 = 164.24/x
  3. Step 3: Cross multiply
    169.75x = 252.95 × 164.24
  4. Step 4: Simplify right side
    169.75x = 41,543.24
  5. Step 5: Solve for x
    x = 41,543.24/169.75
  6. Step 6: Final answer
    x = 244.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.