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Finding the Fourth Proportional to 182.62, 252.02 and 99.73

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Solution

The fourth proportional to 182.62, 252.02 and 99.73 is: 137.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.62 : 252.02 = 99.73 : x
  2. Step 2: Convert to fraction form
    182.62/252.02 = 99.73/x
  3. Step 3: Cross multiply
    182.62x = 252.02 × 99.73
  4. Step 4: Simplify right side
    182.62x = 25,134.03
  5. Step 5: Solve for x
    x = 25,134.03/182.62
  6. Step 6: Final answer
    x = 137.63

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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.