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Finding the Fourth Proportional to 325,772.26, 449,529.45 and 189,777.77

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Solution

The fourth proportional to 325,772.26, 449,529.45 and 189,777.77 is: 261,872.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,772.26 : 449,529.45 = 189,777.77 : x
  2. Step 2: Convert to fraction form
    325,772.26/449,529.45 = 189,777.77/x
  3. Step 3: Cross multiply
    325,772.26x = 449,529.45 × 189,777.77
  4. Step 4: Simplify right side
    325,772.26x = 85,310,695,296.75
  5. Step 5: Solve for x
    x = 85,310,695,296.75/325,772.26
  6. Step 6: Final answer
    x = 261,872.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.