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Finding the Fourth Proportional to 109.42, 164.16 and 44.44

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Solution

The fourth proportional to 109.42, 164.16 and 44.44 is: 66.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    109.42 : 164.16 = 44.44 : x
  2. Step 2: Convert to fraction form
    109.42/164.16 = 44.44/x
  3. Step 3: Cross multiply
    109.42x = 164.16 × 44.44
  4. Step 4: Simplify right side
    109.42x = 7,295.27
  5. Step 5: Solve for x
    x = 7,295.27/109.42
  6. Step 6: Final answer
    x = 66.67

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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.