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Finding the Fourth Proportional to 140.44, 193.98 and 116.14

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Solution

The fourth proportional to 140.44, 193.98 and 116.14 is: 160.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    140.44 : 193.98 = 116.14 : x
  2. Step 2: Convert to fraction form
    140.44/193.98 = 116.14/x
  3. Step 3: Cross multiply
    140.44x = 193.98 × 116.14
  4. Step 4: Simplify right side
    140.44x = 22,528.84
  5. Step 5: Solve for x
    x = 22,528.84/140.44
  6. Step 6: Final answer
    x = 160.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.