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Finding the Fourth Proportional to 54,653,223.92, 81,978,529.12 and 17,765,067.56

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Solution

The fourth proportional to 54,653,223.92, 81,978,529.12 and 17,765,067.56 is: 26,647,176.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,653,223.92 : 81,978,529.12 = 17,765,067.56 : x
  2. Step 2: Convert to fraction form
    54,653,223.92/81,978,529.12 = 17,765,067.56/x
  3. Step 3: Cross multiply
    54,653,223.92x = 81,978,529.12 × 17,765,067.56
  4. Step 4: Simplify right side
    54,653,223.92x = 1,456,354,108,286,227.25
  5. Step 5: Solve for x
    x = 1,456,354,108,286,227.25/54,653,223.92
  6. Step 6: Final answer
    x = 26,647,176.58

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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.