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Finding the Fourth Proportional to 236.63, 353.36 and 193.39

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Solution

The fourth proportional to 236.63, 353.36 and 193.39 is: 288.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.63 : 353.36 = 193.39 : x
  2. Step 2: Convert to fraction form
    236.63/353.36 = 193.39/x
  3. Step 3: Cross multiply
    236.63x = 353.36 × 193.39
  4. Step 4: Simplify right side
    236.63x = 68,334.80
  5. Step 5: Solve for x
    x = 68,334.80/236.63
  6. Step 6: Final answer
    x = 288.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.