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Finding the Fourth Proportional to 236.36, 354 and 178.68

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Solution

The fourth proportional to 236.36, 354 and 178.68 is: 267.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.36 : 354 = 178.68 : x
  2. Step 2: Convert to fraction form
    236.36/354 = 178.68/x
  3. Step 3: Cross multiply
    236.36x = 354 × 178.68
  4. Step 4: Simplify right side
    236.36x = 63,252.72
  5. Step 5: Solve for x
    x = 63,252.72/236.36
  6. Step 6: Final answer
    x = 267.61

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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.