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Finding the Fourth Proportional to 269,951,904, 404,996,906.90 and 78,475,680

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Solution

The fourth proportional to 269,951,904, 404,996,906.90 and 78,475,680 is: 117,733,593.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,951,904 : 404,996,906.90 = 78,475,680 : x
  2. Step 2: Convert to fraction form
    269,951,904/404,996,906.90 = 78,475,680/x
  3. Step 3: Cross multiply
    269,951,904x = 404,996,906.90 × 78,475,680
  4. Step 4: Simplify right side
    269,951,904x = 31,782,407,666,874,192
  5. Step 5: Solve for x
    x = 31,782,407,666,874,192/269,951,904
  6. Step 6: Final answer
    x = 117,733,593.27

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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.