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Finding the Fourth Proportional to 73,266.75, 109,908.94 and 25,872.09

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Solution

The fourth proportional to 73,266.75, 109,908.94 and 25,872.09 is: 38,811.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,266.75 : 109,908.94 = 25,872.09 : x
  2. Step 2: Convert to fraction form
    73,266.75/109,908.94 = 25,872.09/x
  3. Step 3: Cross multiply
    73,266.75x = 109,908.94 × 25,872.09
  4. Step 4: Simplify right side
    73,266.75x = 2,843,573,987.48
  5. Step 5: Solve for x
    x = 2,843,573,987.48/73,266.75
  6. Step 6: Final answer
    x = 38,811.25

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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.