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Finding the Fourth Proportional to 190.36, 262.62 and 116.67

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Solution

The fourth proportional to 190.36, 262.62 and 116.67 is: 160.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.36 : 262.62 = 116.67 : x
  2. Step 2: Convert to fraction form
    190.36/262.62 = 116.67/x
  3. Step 3: Cross multiply
    190.36x = 262.62 × 116.67
  4. Step 4: Simplify right side
    190.36x = 30,639.88
  5. Step 5: Solve for x
    x = 30,639.88/190.36
  6. Step 6: Final answer
    x = 160.96

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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.