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Finding the Fourth Proportional to 116.92, 174.38 and 103.24

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Solution

The fourth proportional to 116.92, 174.38 and 103.24 is: 153.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.92 : 174.38 = 103.24 : x
  2. Step 2: Convert to fraction form
    116.92/174.38 = 103.24/x
  3. Step 3: Cross multiply
    116.92x = 174.38 × 103.24
  4. Step 4: Simplify right side
    116.92x = 18,002.99
  5. Step 5: Solve for x
    x = 18,002.99/116.92
  6. Step 6: Final answer
    x = 153.98

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.