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Finding the Fourth Proportional to 444,939.58, 667,403.76 and 107,983

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Solution

The fourth proportional to 444,939.58, 667,403.76 and 107,983 is: 161,973.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,939.58 : 667,403.76 = 107,983 : x
  2. Step 2: Convert to fraction form
    444,939.58/667,403.76 = 107,983/x
  3. Step 3: Cross multiply
    444,939.58x = 667,403.76 × 107,983
  4. Step 4: Simplify right side
    444,939.58x = 72,068,260,216.08
  5. Step 5: Solve for x
    x = 72,068,260,216.08/444,939.58
  6. Step 6: Final answer
    x = 161,973.14

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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.