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Finding the Third Proportional to 190.75 and 368.50

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Solution

The third proportional to 190.75 and 368.50 is: 711.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.75 : 368.50 = 368.50 : x
  2. Step 2: Convert to fraction form
    190.75/368.50 = 368.50/x
  3. Step 3: Cross multiply
    190.75x = 368.50 × 368.50
  4. Step 4: Simplify right side
    190.75x = 135,792.25
  5. Step 5: Solve for x
    x = 135,792.25/190.75
  6. Step 6: Final answer
    x = 711.89

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Why These Related Problems?

These problems maintain the same ratio (1.93) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.