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Finding the Fourth Proportional to 236.50, 326.37 and 133

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Solution

The fourth proportional to 236.50, 326.37 and 133 is: 183.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.50 : 326.37 = 133 : x
  2. Step 2: Convert to fraction form
    236.50/326.37 = 133/x
  3. Step 3: Cross multiply
    236.50x = 326.37 × 133
  4. Step 4: Simplify right side
    236.50x = 43,407.21
  5. Step 5: Solve for x
    x = 43,407.21/236.50
  6. Step 6: Final answer
    x = 183.54

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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.