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Finding the Fourth Proportional to 444,369.44, 666,654.20 and 140,781.90

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Solution

The fourth proportional to 444,369.44, 666,654.20 and 140,781.90 is: 211,204.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,369.44 : 666,654.20 = 140,781.90 : x
  2. Step 2: Convert to fraction form
    444,369.44/666,654.20 = 140,781.90/x
  3. Step 3: Cross multiply
    444,369.44x = 666,654.20 × 140,781.90
  4. Step 4: Simplify right side
    444,369.44x = 93,852,844,918.98
  5. Step 5: Solve for x
    x = 93,852,844,918.98/444,369.44
  6. Step 6: Final answer
    x = 211,204.54

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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.