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Finding the Fourth Proportional to 190.24, 262.56 and 116.56

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Solution

The fourth proportional to 190.24, 262.56 and 116.56 is: 160.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.24 : 262.56 = 116.56 : x
  2. Step 2: Convert to fraction form
    190.24/262.56 = 116.56/x
  3. Step 3: Cross multiply
    190.24x = 262.56 × 116.56
  4. Step 4: Simplify right side
    190.24x = 30,603.99
  5. Step 5: Solve for x
    x = 30,603.99/190.24
  6. Step 6: Final answer
    x = 160.87

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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.