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Finding the Fourth Proportional to 116.02, 174.03 and 43.88

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Solution

The fourth proportional to 116.02, 174.03 and 43.88 is: 65.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.02 : 174.03 = 43.88 : x
  2. Step 2: Convert to fraction form
    116.02/174.03 = 43.88/x
  3. Step 3: Cross multiply
    116.02x = 174.03 × 43.88
  4. Step 4: Simplify right side
    116.02x = 7,635.40
  5. Step 5: Solve for x
    x = 7,635.40/116.02
  6. Step 6: Final answer
    x = 65.81

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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.