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Finding the Fourth Proportional to 299,713.59, 449,660.43 and 89,351.46

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Solution

The fourth proportional to 299,713.59, 449,660.43 and 89,351.46 is: 134,054.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,713.59 : 449,660.43 = 89,351.46 : x
  2. Step 2: Convert to fraction form
    299,713.59/449,660.43 = 89,351.46/x
  3. Step 3: Cross multiply
    299,713.59x = 449,660.43 × 89,351.46
  4. Step 4: Simplify right side
    299,713.59x = 40,177,815,924.73
  5. Step 5: Solve for x
    x = 40,177,815,924.73/299,713.59
  6. Step 6: Final answer
    x = 134,054.03

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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.