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Finding the Fourth Proportional to 182.14, 273.22 and 66.64

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Solution

The fourth proportional to 182.14, 273.22 and 66.64 is: 99.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.14 : 273.22 = 66.64 : x
  2. Step 2: Convert to fraction form
    182.14/273.22 = 66.64/x
  3. Step 3: Cross multiply
    182.14x = 273.22 × 66.64
  4. Step 4: Simplify right side
    182.14x = 18,207.38
  5. Step 5: Solve for x
    x = 18,207.38/182.14
  6. Step 6: Final answer
    x = 99.96

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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.