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Finding the Fourth Proportional to 236.22, 325.44 and 196.74

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Solution

The fourth proportional to 236.22, 325.44 and 196.74 is: 271.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.22 : 325.44 = 196.74 : x
  2. Step 2: Convert to fraction form
    236.22/325.44 = 196.74/x
  3. Step 3: Cross multiply
    236.22x = 325.44 × 196.74
  4. Step 4: Simplify right side
    236.22x = 64,027.07
  5. Step 5: Solve for x
    x = 64,027.07/236.22
  6. Step 6: Final answer
    x = 271.05

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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.