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Finding the Fourth Proportional to 618,564.98, 927,992.73 and 192,078.79

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Solution

The fourth proportional to 618,564.98, 927,992.73 and 192,078.79 is: 288,163.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,564.98 : 927,992.73 = 192,078.79 : x
  2. Step 2: Convert to fraction form
    618,564.98/927,992.73 = 192,078.79/x
  3. Step 3: Cross multiply
    618,564.98x = 927,992.73 × 192,078.79
  4. Step 4: Simplify right side
    618,564.98x = 178,247,719,107.51
  5. Step 5: Solve for x
    x = 178,247,719,107.51/618,564.98
  6. Step 6: Final answer
    x = 288,163.29

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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.