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Finding the Fourth Proportional to 116.53, 174.76 and 54.83

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Solution

The fourth proportional to 116.53, 174.76 and 54.83 is: 82.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.53 : 174.76 = 54.83 : x
  2. Step 2: Convert to fraction form
    116.53/174.76 = 54.83/x
  3. Step 3: Cross multiply
    116.53x = 174.76 × 54.83
  4. Step 4: Simplify right side
    116.53x = 9,580.94
  5. Step 5: Solve for x
    x = 9,580.94/116.53
  6. Step 6: Final answer
    x = 82.22

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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.