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Finding the Fourth Proportional to 72,190.89, 108,295.25 and 24,815.61

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Solution

The fourth proportional to 72,190.89, 108,295.25 and 24,815.61 is: 37,226.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,190.89 : 108,295.25 = 24,815.61 : x
  2. Step 2: Convert to fraction form
    72,190.89/108,295.25 = 24,815.61/x
  3. Step 3: Cross multiply
    72,190.89x = 108,295.25 × 24,815.61
  4. Step 4: Simplify right side
    72,190.89x = 2,687,412,564.77
  5. Step 5: Solve for x
    x = 2,687,412,564.77/72,190.89
  6. Step 6: Final answer
    x = 37,226.48

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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.