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Finding the Fourth Proportional to 481,882.94, 722,859.92 and 126,894.50

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Solution

The fourth proportional to 481,882.94, 722,859.92 and 126,894.50 is: 190,351.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,882.94 : 722,859.92 = 126,894.50 : x
  2. Step 2: Convert to fraction form
    481,882.94/722,859.92 = 126,894.50/x
  3. Step 3: Cross multiply
    481,882.94x = 722,859.92 × 126,894.50
  4. Step 4: Simplify right side
    481,882.94x = 91,726,948,118.44
  5. Step 5: Solve for x
    x = 91,726,948,118.44/481,882.94
  6. Step 6: Final answer
    x = 190,351.10

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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.