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Finding the Fourth Proportional to 182.64, 252.03 and 99.73

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Solution

The fourth proportional to 182.64, 252.03 and 99.73 is: 137.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.64 : 252.03 = 99.73 : x
  2. Step 2: Convert to fraction form
    182.64/252.03 = 99.73/x
  3. Step 3: Cross multiply
    182.64x = 252.03 × 99.73
  4. Step 4: Simplify right side
    182.64x = 25,133.38
  5. Step 5: Solve for x
    x = 25,133.38/182.64
  6. Step 6: Final answer
    x = 137.61

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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.