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Finding the Fourth Proportional to 236.45, 354.47 and 92.27

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Solution

The fourth proportional to 236.45, 354.47 and 92.27 is: 138.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.45 : 354.47 = 92.27 : x
  2. Step 2: Convert to fraction form
    236.45/354.47 = 92.27/x
  3. Step 3: Cross multiply
    236.45x = 354.47 × 92.27
  4. Step 4: Simplify right side
    236.45x = 32,704.71
  5. Step 5: Solve for x
    x = 32,704.71/236.45
  6. Step 6: Final answer
    x = 138.32

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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.