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Finding the Fourth Proportional to 190.16, 262.46 and 116.48

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Solution

The fourth proportional to 190.16, 262.46 and 116.48 is: 160.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.16 : 262.46 = 116.48 : x
  2. Step 2: Convert to fraction form
    190.16/262.46 = 116.48/x
  3. Step 3: Cross multiply
    190.16x = 262.46 × 116.48
  4. Step 4: Simplify right side
    190.16x = 30,570.32
  5. Step 5: Solve for x
    x = 30,570.32/190.16
  6. Step 6: Final answer
    x = 160.76

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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.