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Finding the Fourth Proportional to 235.44, 354.66 and 233.28

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Solution

The fourth proportional to 235.44, 354.66 and 233.28 is: 351.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.44 : 354.66 = 233.28 : x
  2. Step 2: Convert to fraction form
    235.44/354.66 = 233.28/x
  3. Step 3: Cross multiply
    235.44x = 354.66 × 233.28
  4. Step 4: Simplify right side
    235.44x = 82,735.08
  5. Step 5: Solve for x
    x = 82,735.08/235.44
  6. Step 6: Final answer
    x = 351.41

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.