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Finding the Fourth Proportional to 116.54, 173.70 and 92.06

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Solution

The fourth proportional to 116.54, 173.70 and 92.06 is: 137.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.54 : 173.70 = 92.06 : x
  2. Step 2: Convert to fraction form
    116.54/173.70 = 92.06/x
  3. Step 3: Cross multiply
    116.54x = 173.70 × 92.06
  4. Step 4: Simplify right side
    116.54x = 15,990.82
  5. Step 5: Solve for x
    x = 15,990.82/116.54
  6. Step 6: Final answer
    x = 137.21

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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.