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Finding the Fourth Proportional to 197.92, 273.50 and 151.24

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Solution

The fourth proportional to 197.92, 273.50 and 151.24 is: 208.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    197.92 : 273.50 = 151.24 : x
  2. Step 2: Convert to fraction form
    197.92/273.50 = 151.24/x
  3. Step 3: Cross multiply
    197.92x = 273.50 × 151.24
  4. Step 4: Simplify right side
    197.92x = 41,364.14
  5. Step 5: Solve for x
    x = 41,364.14/197.92
  6. Step 6: Final answer
    x = 208.99

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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.