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Finding the Fourth Proportional to 185,694.92, 278,370.38 and 67,334.48

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Solution

The fourth proportional to 185,694.92, 278,370.38 and 67,334.48 is: 100,939.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,694.92 : 278,370.38 = 67,334.48 : x
  2. Step 2: Convert to fraction form
    185,694.92/278,370.38 = 67,334.48/x
  3. Step 3: Cross multiply
    185,694.92x = 278,370.38 × 67,334.48
  4. Step 4: Simplify right side
    185,694.92x = 18,743,923,561.19
  5. Step 5: Solve for x
    x = 18,743,923,561.19/185,694.92
  6. Step 6: Final answer
    x = 100,939.35

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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.