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Finding the Fourth Proportional to 116.22, 174.33 and 108.93

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Solution

The fourth proportional to 116.22, 174.33 and 108.93 is: 163.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.22 : 174.33 = 108.93 : x
  2. Step 2: Convert to fraction form
    116.22/174.33 = 108.93/x
  3. Step 3: Cross multiply
    116.22x = 174.33 × 108.93
  4. Step 4: Simplify right side
    116.22x = 18,989.77
  5. Step 5: Solve for x
    x = 18,989.77/116.22
  6. Step 6: Final answer
    x = 163.40

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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.