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Finding the Fourth Proportional to 116.56, 175 and 73.84

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Solution

The fourth proportional to 116.56, 175 and 73.84 is: 110.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.56 : 175 = 73.84 : x
  2. Step 2: Convert to fraction form
    116.56/175 = 73.84/x
  3. Step 3: Cross multiply
    116.56x = 175 × 73.84
  4. Step 4: Simplify right side
    116.56x = 12,922
  5. Step 5: Solve for x
    x = 12,922/116.56
  6. Step 6: Final answer
    x = 110.86

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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.