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Finding the Fourth Proportional to 190.35, 262.67 and 116.66

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Solution

The fourth proportional to 190.35, 262.67 and 116.66 is: 160.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.35 : 262.67 = 116.66 : x
  2. Step 2: Convert to fraction form
    190.35/262.67 = 116.66/x
  3. Step 3: Cross multiply
    190.35x = 262.67 × 116.66
  4. Step 4: Simplify right side
    190.35x = 30,641.19
  5. Step 5: Solve for x
    x = 30,641.19/190.35
  6. Step 6: Final answer
    x = 160.97

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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.