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Finding the Fourth Proportional to 182.84, 273.91 and 91.43

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Solution

The fourth proportional to 182.84, 273.91 and 91.43 is: 136.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.84 : 273.91 = 91.43 : x
  2. Step 2: Convert to fraction form
    182.84/273.91 = 91.43/x
  3. Step 3: Cross multiply
    182.84x = 273.91 × 91.43
  4. Step 4: Simplify right side
    182.84x = 25,043.59
  5. Step 5: Solve for x
    x = 25,043.59/182.84
  6. Step 6: Final answer
    x = 136.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.