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Finding the Fourth Proportional to 169.15, 252.19 and 152.75

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Solution

The fourth proportional to 169.15, 252.19 and 152.75 is: 227.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.15 : 252.19 = 152.75 : x
  2. Step 2: Convert to fraction form
    169.15/252.19 = 152.75/x
  3. Step 3: Cross multiply
    169.15x = 252.19 × 152.75
  4. Step 4: Simplify right side
    169.15x = 38,521.35
  5. Step 5: Solve for x
    x = 38,521.35/169.15
  6. Step 6: Final answer
    x = 227.73

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