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Finding the Fourth Proportional to 190.26, 262.65 and 116.62

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Solution

The fourth proportional to 190.26, 262.65 and 116.62 is: 160.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.26 : 262.65 = 116.62 : x
  2. Step 2: Convert to fraction form
    190.26/262.65 = 116.62/x
  3. Step 3: Cross multiply
    190.26x = 262.65 × 116.62
  4. Step 4: Simplify right side
    190.26x = 30,630.02
  5. Step 5: Solve for x
    x = 30,630.02/190.26
  6. Step 6: Final answer
    x = 160.99

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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.