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Finding the Fourth Proportional to 235.74, 352.92 and 174.68

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Solution

The fourth proportional to 235.74, 352.92 and 174.68 is: 261.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.74 : 352.92 = 174.68 : x
  2. Step 2: Convert to fraction form
    235.74/352.92 = 174.68/x
  3. Step 3: Cross multiply
    235.74x = 352.92 × 174.68
  4. Step 4: Simplify right side
    235.74x = 61,648.07
  5. Step 5: Solve for x
    x = 61,648.07/235.74
  6. Step 6: Final answer
    x = 261.51

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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.