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Finding the Third Proportional to 201,143.50 and 277,076.75

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Solution

The third proportional to 201,143.50 and 277,076.75 is: 381,675.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,143.50 : 277,076.75 = 277,076.75 : x
  2. Step 2: Convert to fraction form
    201,143.50/277,076.75 = 277,076.75/x
  3. Step 3: Cross multiply
    201,143.50x = 277,076.75 × 277,076.75
  4. Step 4: Simplify right side
    201,143.50x = 76,771,525,390.56
  5. Step 5: Solve for x
    x = 76,771,525,390.56/201,143.50
  6. Step 6: Final answer
    x = 381,675.40

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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.