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Finding the Fourth Proportional to 444,899.52, 667,485.36 and 129,359.16

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Solution

The fourth proportional to 444,899.52, 667,485.36 and 129,359.16 is: 194,078.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,899.52 : 667,485.36 = 129,359.16 : x
  2. Step 2: Convert to fraction form
    444,899.52/667,485.36 = 129,359.16/x
  3. Step 3: Cross multiply
    444,899.52x = 667,485.36 × 129,359.16
  4. Step 4: Simplify right side
    444,899.52x = 86,345,345,481.90
  5. Step 5: Solve for x
    x = 86,345,345,481.90/444,899.52
  6. Step 6: Final answer
    x = 194,078.31

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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.