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Finding the Fourth Proportional to 299,662.74, 449,660.19 and 122,155.91

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Solution

The fourth proportional to 299,662.74, 449,660.19 and 122,155.91 is: 183,301.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,662.74 : 449,660.19 = 122,155.91 : x
  2. Step 2: Convert to fraction form
    299,662.74/449,660.19 = 122,155.91/x
  3. Step 3: Cross multiply
    299,662.74x = 449,660.19 × 122,155.91
  4. Step 4: Simplify right side
    299,662.74x = 54,928,649,197.88
  5. Step 5: Solve for x
    x = 54,928,649,197.88/299,662.74
  6. Step 6: Final answer
    x = 183,301.56

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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.