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Finding the Fourth Proportional to 444,025.31, 666,120.11 and 140,495.86

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Solution

The fourth proportional to 444,025.31, 666,120.11 and 140,495.86 is: 210,769.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,025.31 : 666,120.11 = 140,495.86 : x
  2. Step 2: Convert to fraction form
    444,025.31/666,120.11 = 140,495.86/x
  3. Step 3: Cross multiply
    444,025.31x = 666,120.11 × 140,495.86
  4. Step 4: Simplify right side
    444,025.31x = 93,587,115,974.45
  5. Step 5: Solve for x
    x = 93,587,115,974.45/444,025.31
  6. Step 6: Final answer
    x = 210,769.78

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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.