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Finding the Fourth Proportional to 236.64, 354.92 and 92.36

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Solution

The fourth proportional to 236.64, 354.92 and 92.36 is: 138.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.64 : 354.92 = 92.36 : x
  2. Step 2: Convert to fraction form
    236.64/354.92 = 92.36/x
  3. Step 3: Cross multiply
    236.64x = 354.92 × 92.36
  4. Step 4: Simplify right side
    236.64x = 32,780.41
  5. Step 5: Solve for x
    x = 32,780.41/236.64
  6. Step 6: Final answer
    x = 138.52

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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.