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Finding the Fourth Proportional to 393,227.88, 589,839.99 and 123,375.77

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Solution

The fourth proportional to 393,227.88, 589,839.99 and 123,375.77 is: 185,063.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,227.88 : 589,839.99 = 123,375.77 : x
  2. Step 2: Convert to fraction form
    393,227.88/589,839.99 = 123,375.77/x
  3. Step 3: Cross multiply
    393,227.88x = 589,839.99 × 123,375.77
  4. Step 4: Simplify right side
    393,227.88x = 72,771,962,943.04
  5. Step 5: Solve for x
    x = 72,771,962,943.04/393,227.88
  6. Step 6: Final answer
    x = 185,063.08

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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.