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Finding the Fourth Proportional to 79,863.98, 119,810.31 and 27,261.16

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Solution

The fourth proportional to 79,863.98, 119,810.31 and 27,261.16 is: 40,896.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,863.98 : 119,810.31 = 27,261.16 : x
  2. Step 2: Convert to fraction form
    79,863.98/119,810.31 = 27,261.16/x
  3. Step 3: Cross multiply
    79,863.98x = 119,810.31 × 27,261.16
  4. Step 4: Simplify right side
    79,863.98x = 3,266,167,628.80
  5. Step 5: Solve for x
    x = 3,266,167,628.80/79,863.98
  6. Step 6: Final answer
    x = 40,896.63

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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.