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Finding the Fourth Proportional to 299,664.80, 449,497.20 and 181,275.20

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Solution

The fourth proportional to 299,664.80, 449,497.20 and 181,275.20 is: 271,912.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,664.80 : 449,497.20 = 181,275.20 : x
  2. Step 2: Convert to fraction form
    299,664.80/449,497.20 = 181,275.20/x
  3. Step 3: Cross multiply
    299,664.80x = 449,497.20 × 181,275.20
  4. Step 4: Simplify right side
    299,664.80x = 81,482,694,829.44
  5. Step 5: Solve for x
    x = 81,482,694,829.44/299,664.80
  6. Step 6: Final answer
    x = 271,912.80

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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.