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Finding the Fourth Proportional to 299,591.70, 449,387.55 and 122,007.30

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Solution

The fourth proportional to 299,591.70, 449,387.55 and 122,007.30 is: 183,010.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,591.70 : 449,387.55 = 122,007.30 : x
  2. Step 2: Convert to fraction form
    299,591.70/449,387.55 = 122,007.30/x
  3. Step 3: Cross multiply
    299,591.70x = 449,387.55 × 122,007.30
  4. Step 4: Simplify right side
    299,591.70x = 54,828,561,629.12
  5. Step 5: Solve for x
    x = 54,828,561,629.12/299,591.70
  6. Step 6: Final answer
    x = 183,010.95

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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.