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Finding the Fourth Proportional to 237.69, 327.74 and 196.36

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Solution

The fourth proportional to 237.69, 327.74 and 196.36 is: 270.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.69 : 327.74 = 196.36 : x
  2. Step 2: Convert to fraction form
    237.69/327.74 = 196.36/x
  3. Step 3: Cross multiply
    237.69x = 327.74 × 196.36
  4. Step 4: Simplify right side
    237.69x = 64,353.23
  5. Step 5: Solve for x
    x = 64,353.23/237.69
  6. Step 6: Final answer
    x = 270.74

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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.