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Finding the Fourth Proportional to 116.47, 174.70 and 35.31

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Solution

The fourth proportional to 116.47, 174.70 and 35.31 is: 52.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.47 : 174.70 = 35.31 : x
  2. Step 2: Convert to fraction form
    116.47/174.70 = 35.31/x
  3. Step 3: Cross multiply
    116.47x = 174.70 × 35.31
  4. Step 4: Simplify right side
    116.47x = 6,168.50
  5. Step 5: Solve for x
    x = 6,168.50/116.47
  6. Step 6: Final answer
    x = 52.96

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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.