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Finding the Fourth Proportional to 116.22, 174.46 and 64.84

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Solution

The fourth proportional to 116.22, 174.46 and 64.84 is: 97.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.22 : 174.46 = 64.84 : x
  2. Step 2: Convert to fraction form
    116.22/174.46 = 64.84/x
  3. Step 3: Cross multiply
    116.22x = 174.46 × 64.84
  4. Step 4: Simplify right side
    116.22x = 11,311.99
  5. Step 5: Solve for x
    x = 11,311.99/116.22
  6. Step 6: Final answer
    x = 97.33

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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.