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Finding the Fourth Proportional to 185,388.75, 277,918.19 and 67,033.78

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Solution

The fourth proportional to 185,388.75, 277,918.19 and 67,033.78 is: 100,491.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,388.75 : 277,918.19 = 67,033.78 : x
  2. Step 2: Convert to fraction form
    185,388.75/277,918.19 = 67,033.78/x
  3. Step 3: Cross multiply
    185,388.75x = 277,918.19 × 67,033.78
  4. Step 4: Simplify right side
    185,388.75x = 18,629,906,027.87
  5. Step 5: Solve for x
    x = 18,629,906,027.87/185,388.75
  6. Step 6: Final answer
    x = 100,491.03

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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.