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Finding the Fourth Proportional to 190.56, 262.98 and 116.84

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Solution

The fourth proportional to 190.56, 262.98 and 116.84 is: 161.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.56 : 262.98 = 116.84 : x
  2. Step 2: Convert to fraction form
    190.56/262.98 = 116.84/x
  3. Step 3: Cross multiply
    190.56x = 262.98 × 116.84
  4. Step 4: Simplify right side
    190.56x = 30,726.09
  5. Step 5: Solve for x
    x = 30,726.09/190.56
  6. Step 6: Final answer
    x = 161.24

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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.