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Finding the Fourth Proportional to 236.82, 326.64 and 149.61

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Solution

The fourth proportional to 236.82, 326.64 and 149.61 is: 206.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.82 : 326.64 = 149.61 : x
  2. Step 2: Convert to fraction form
    236.82/326.64 = 149.61/x
  3. Step 3: Cross multiply
    236.82x = 326.64 × 149.61
  4. Step 4: Simplify right side
    236.82x = 48,868.61
  5. Step 5: Solve for x
    x = 48,868.61/236.82
  6. Step 6: Final answer
    x = 206.35

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.