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Finding the Fourth Proportional to 550,021.50, 825,032.91 and 150,665.72

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Solution

The fourth proportional to 550,021.50, 825,032.91 and 150,665.72 is: 225,998.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,021.50 : 825,032.91 = 150,665.72 : x
  2. Step 2: Convert to fraction form
    550,021.50/825,032.91 = 150,665.72/x
  3. Step 3: Cross multiply
    550,021.50x = 825,032.91 × 150,665.72
  4. Step 4: Simplify right side
    550,021.50x = 124,304,177,408.85
  5. Step 5: Solve for x
    x = 124,304,177,408.85/550,021.50
  6. Step 6: Final answer
    x = 225,998.76

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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.