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Finding the Fourth Proportional to 133,912.72, 200,951.08 and 53,936.02

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Solution

The fourth proportional to 133,912.72, 200,951.08 and 53,936.02 is: 80,937.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,912.72 : 200,951.08 = 53,936.02 : x
  2. Step 2: Convert to fraction form
    133,912.72/200,951.08 = 53,936.02/x
  3. Step 3: Cross multiply
    133,912.72x = 200,951.08 × 53,936.02
  4. Step 4: Simplify right side
    133,912.72x = 10,838,501,469.90
  5. Step 5: Solve for x
    x = 10,838,501,469.90/133,912.72
  6. Step 6: Final answer
    x = 80,937.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.