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Finding the Third Proportional to 190.50 and 474.75

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Solution

The third proportional to 190.50 and 474.75 is: 1,183.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.50 : 474.75 = 474.75 : x
  2. Step 2: Convert to fraction form
    190.50/474.75 = 474.75/x
  3. Step 3: Cross multiply
    190.50x = 474.75 × 474.75
  4. Step 4: Simplify right side
    190.50x = 225,387.56
  5. Step 5: Solve for x
    x = 225,387.56/190.50
  6. Step 6: Final answer
    x = 1,183.14

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Why These Related Problems?

These problems maintain the same ratio (2.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.