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Finding the Fourth Proportional to 116.62, 174.90 and 35.42

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Solution

The fourth proportional to 116.62, 174.90 and 35.42 is: 53.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.62 : 174.90 = 35.42 : x
  2. Step 2: Convert to fraction form
    116.62/174.90 = 35.42/x
  3. Step 3: Cross multiply
    116.62x = 174.90 × 35.42
  4. Step 4: Simplify right side
    116.62x = 6,193.95
  5. Step 5: Solve for x
    x = 6,193.95/116.62
  6. Step 6: Final answer
    x = 53.11

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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.