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Finding the Fourth Proportional to 237.60, 327.56 and 202.56

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Solution

The fourth proportional to 237.60, 327.56 and 202.56 is: 279.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.60 : 327.56 = 202.56 : x
  2. Step 2: Convert to fraction form
    237.60/327.56 = 202.56/x
  3. Step 3: Cross multiply
    237.60x = 327.56 × 202.56
  4. Step 4: Simplify right side
    237.60x = 66,350.55
  5. Step 5: Solve for x
    x = 66,350.55/237.60
  6. Step 6: Final answer
    x = 279.25

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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.