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Finding the Fourth Proportional to 150,859.85, 225,945.32 and 72,029.43

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Solution

The fourth proportional to 150,859.85, 225,945.32 and 72,029.43 is: 107,879.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,859.85 : 225,945.32 = 72,029.43 : x
  2. Step 2: Convert to fraction form
    150,859.85/225,945.32 = 72,029.43/x
  3. Step 3: Cross multiply
    150,859.85x = 225,945.32 × 72,029.43
  4. Step 4: Simplify right side
    150,859.85x = 16,274,712,250.62
  5. Step 5: Solve for x
    x = 16,274,712,250.62/150,859.85
  6. Step 6: Final answer
    x = 107,879.68

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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.