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Finding the Fourth Proportional to 190.01, 262.09 and 116.30

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Solution

The fourth proportional to 190.01, 262.09 and 116.30 is: 160.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.01 : 262.09 = 116.30 : x
  2. Step 2: Convert to fraction form
    190.01/262.09 = 116.30/x
  3. Step 3: Cross multiply
    190.01x = 262.09 × 116.30
  4. Step 4: Simplify right side
    190.01x = 30,481.07
  5. Step 5: Solve for x
    x = 30,481.07/190.01
  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.