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Finding the Fourth Proportional to 116.93, 175.36 and 55.22

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Solution

The fourth proportional to 116.93, 175.36 and 55.22 is: 82.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.93 : 175.36 = 55.22 : x
  2. Step 2: Convert to fraction form
    116.93/175.36 = 55.22/x
  3. Step 3: Cross multiply
    116.93x = 175.36 × 55.22
  4. Step 4: Simplify right side
    116.93x = 9,683.38
  5. Step 5: Solve for x
    x = 9,683.38/116.93
  6. Step 6: Final answer
    x = 82.81

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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.