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Finding the Fourth Proportional to 444,363.43, 666,700.66 and 128,839.27

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Solution

The fourth proportional to 444,363.43, 666,700.66 and 128,839.27 is: 193,303.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,363.43 : 666,700.66 = 128,839.27 : x
  2. Step 2: Convert to fraction form
    444,363.43/666,700.66 = 128,839.27/x
  3. Step 3: Cross multiply
    444,363.43x = 666,700.66 × 128,839.27
  4. Step 4: Simplify right side
    444,363.43x = 85,897,222,687.32
  5. Step 5: Solve for x
    x = 85,897,222,687.32/444,363.43
  6. Step 6: Final answer
    x = 193,303.99

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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.