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Finding the Fourth Proportional to 133,937.80, 200,906.70 and 104,377.75

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Solution

The fourth proportional to 133,937.80, 200,906.70 and 104,377.75 is: 156,566.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,937.80 : 200,906.70 = 104,377.75 : x
  2. Step 2: Convert to fraction form
    133,937.80/200,906.70 = 104,377.75/x
  3. Step 3: Cross multiply
    133,937.80x = 200,906.70 × 104,377.75
  4. Step 4: Simplify right side
    133,937.80x = 20,970,189,305.93
  5. Step 5: Solve for x
    x = 20,970,189,305.93/133,937.80
  6. Step 6: Final answer
    x = 156,566.63

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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.