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Finding the Fourth Proportional to 299,793.20, 449,617.80 and 173,159.60

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Solution

The fourth proportional to 299,793.20, 449,617.80 and 173,159.60 is: 259,697.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,793.20 : 449,617.80 = 173,159.60 : x
  2. Step 2: Convert to fraction form
    299,793.20/449,617.80 = 173,159.60/x
  3. Step 3: Cross multiply
    299,793.20x = 449,617.80 × 173,159.60
  4. Step 4: Simplify right side
    299,793.20x = 77,855,638,400.88
  5. Step 5: Solve for x
    x = 77,855,638,400.88/299,793.20
  6. Step 6: Final answer
    x = 259,697.81

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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.