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Finding the Third Proportional to 201,142.25 and 434,187.75

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Solution

The third proportional to 201,142.25 and 434,187.75 is: 937,242.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,142.25 : 434,187.75 = 434,187.75 : x
  2. Step 2: Convert to fraction form
    201,142.25/434,187.75 = 434,187.75/x
  3. Step 3: Cross multiply
    201,142.25x = 434,187.75 × 434,187.75
  4. Step 4: Simplify right side
    201,142.25x = 188,519,002,250.06
  5. Step 5: Solve for x
    x = 188,519,002,250.06/201,142.25
  6. Step 6: Final answer
    x = 937,242.19

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.