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Finding the Fourth Proportional to 182.96, 273.78 and 122

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Solution

The fourth proportional to 182.96, 273.78 and 122 is: 182.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.96 : 273.78 = 122 : x
  2. Step 2: Convert to fraction form
    182.96/273.78 = 122/x
  3. Step 3: Cross multiply
    182.96x = 273.78 × 122
  4. Step 4: Simplify right side
    182.96x = 33,401.16
  5. Step 5: Solve for x
    x = 33,401.16/182.96
  6. Step 6: Final answer
    x = 182.56

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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.