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Finding the Fourth Proportional to 444,987.20, 667,553.60 and 145,380.80

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Solution

The fourth proportional to 444,987.20, 667,553.60 and 145,380.80 is: 218,094.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,987.20 : 667,553.60 = 145,380.80 : x
  2. Step 2: Convert to fraction form
    444,987.20/667,553.60 = 145,380.80/x
  3. Step 3: Cross multiply
    444,987.20x = 667,553.60 × 145,380.80
  4. Step 4: Simplify right side
    444,987.20x = 97,049,476,410.88
  5. Step 5: Solve for x
    x = 97,049,476,410.88/444,987.20
  6. Step 6: Final answer
    x = 218,094.98

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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.