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Finding the Fourth Proportional to 185,093.91, 277,751.88 and 79,912.80

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Solution

The fourth proportional to 185,093.91, 277,751.88 and 79,912.80 is: 119,917.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,093.91 : 277,751.88 = 79,912.80 : x
  2. Step 2: Convert to fraction form
    185,093.91/277,751.88 = 79,912.80/x
  3. Step 3: Cross multiply
    185,093.91x = 277,751.88 × 79,912.80
  4. Step 4: Simplify right side
    185,093.91x = 22,195,930,436.06
  5. Step 5: Solve for x
    x = 22,195,930,436.06/185,093.91
  6. Step 6: Final answer
    x = 119,917.13

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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.