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Finding the Fourth Proportional to 237.72, 327 and 236.16

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Solution

The fourth proportional to 237.72, 327 and 236.16 is: 324.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.72 : 327 = 236.16 : x
  2. Step 2: Convert to fraction form
    237.72/327 = 236.16/x
  3. Step 3: Cross multiply
    237.72x = 327 × 236.16
  4. Step 4: Simplify right side
    237.72x = 77,224.32
  5. Step 5: Solve for x
    x = 77,224.32/237.72
  6. Step 6: Final answer
    x = 324.85

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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.