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Finding the Fourth Proportional to 197.88, 273.11 and 124.14

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Solution

The fourth proportional to 197.88, 273.11 and 124.14 is: 171.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.88 : 273.11 = 124.14 : x
  2. Step 2: Convert to fraction form
    197.88/273.11 = 124.14/x
  3. Step 3: Cross multiply
    197.88x = 273.11 × 124.14
  4. Step 4: Simplify right side
    197.88x = 33,903.88
  5. Step 5: Solve for x
    x = 33,903.88/197.88
  6. Step 6: Final answer
    x = 171.34

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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.