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Finding the Fourth Proportional to 269,481,168.80, 404,361,721.20 and 125,874,000.80

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Solution

The fourth proportional to 269,481,168.80, 404,361,721.20 and 125,874,000.80 is: 188,876,379.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,481,168.80 : 404,361,721.20 = 125,874,000.80 : x
  2. Step 2: Convert to fraction form
    269,481,168.80/404,361,721.20 = 125,874,000.80/x
  3. Step 3: Cross multiply
    269,481,168.80x = 404,361,721.20 × 125,874,000.80
  4. Step 4: Simplify right side
    269,481,168.80x = 50,898,627,617,818,176
  5. Step 5: Solve for x
    x = 50,898,627,617,818,176/269,481,168.80
  6. Step 6: Final answer
    x = 188,876,379.91

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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.