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Finding the Fourth Proportional to 182.84, 252.31 and 99.94

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Solution

The fourth proportional to 182.84, 252.31 and 99.94 is: 137.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.84 : 252.31 = 99.94 : x
  2. Step 2: Convert to fraction form
    182.84/252.31 = 99.94/x
  3. Step 3: Cross multiply
    182.84x = 252.31 × 99.94
  4. Step 4: Simplify right side
    182.84x = 25,217.02
  5. Step 5: Solve for x
    x = 25,217.02/182.84
  6. Step 6: Final answer
    x = 137.92

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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.