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Finding the Fourth Proportional to 235.88, 353 and 174.86

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Solution

The fourth proportional to 235.88, 353 and 174.86 is: 261.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.88 : 353 = 174.86 : x
  2. Step 2: Convert to fraction form
    235.88/353 = 174.86/x
  3. Step 3: Cross multiply
    235.88x = 353 × 174.86
  4. Step 4: Simplify right side
    235.88x = 61,725.58
  5. Step 5: Solve for x
    x = 61,725.58/235.88
  6. Step 6: Final answer
    x = 261.68

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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.