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Finding the Fourth Proportional to 72,226.72, 108,377.84 and 29,563.80

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Solution

The fourth proportional to 72,226.72, 108,377.84 and 29,563.80 is: 44,361.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,226.72 : 108,377.84 = 29,563.80 : x
  2. Step 2: Convert to fraction form
    72,226.72/108,377.84 = 29,563.80/x
  3. Step 3: Cross multiply
    72,226.72x = 108,377.84 × 29,563.80
  4. Step 4: Simplify right side
    72,226.72x = 3,204,060,786.19
  5. Step 5: Solve for x
    x = 3,204,060,786.19/72,226.72
  6. Step 6: Final answer
    x = 44,361.16

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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.