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Finding the Fourth Proportional to 190.14, 262.30 and 116.44

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Solution

The fourth proportional to 190.14, 262.30 and 116.44 is: 160.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.14 : 262.30 = 116.44 : x
  2. Step 2: Convert to fraction form
    190.14/262.30 = 116.44/x
  3. Step 3: Cross multiply
    190.14x = 262.30 × 116.44
  4. Step 4: Simplify right side
    190.14x = 30,542.21
  5. Step 5: Solve for x
    x = 30,542.21/190.14
  6. Step 6: Final answer
    x = 160.63

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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.