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Finding the Fourth Proportional to 236.95, 355.22 and 92.63

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Solution

The fourth proportional to 236.95, 355.22 and 92.63 is: 138.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.95 : 355.22 = 92.63 : x
  2. Step 2: Convert to fraction form
    236.95/355.22 = 92.63/x
  3. Step 3: Cross multiply
    236.95x = 355.22 × 92.63
  4. Step 4: Simplify right side
    236.95x = 32,903.57
  5. Step 5: Solve for x
    x = 32,903.57/236.95
  6. Step 6: Final answer
    x = 138.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.