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Finding the Fourth Proportional to 269,951,886, 404,996,879.88 and 78,475,662

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Solution

The fourth proportional to 269,951,886, 404,996,879.88 and 78,475,662 is: 117,733,566.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,951,886 : 404,996,879.88 = 78,475,662 : x
  2. Step 2: Convert to fraction form
    269,951,886/404,996,879.88 = 78,475,662/x
  3. Step 3: Cross multiply
    269,951,886x = 404,996,879.88 × 78,475,662
  4. Step 4: Simplify right side
    269,951,886x = 31,782,398,256,517,480
  5. Step 5: Solve for x
    x = 31,782,398,256,517,480/269,951,886
  6. Step 6: Final answer
    x = 117,733,566.26

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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.