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Finding the Fourth Proportional to 73,082.50, 100,853.94 and 39,548.50

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Solution

The fourth proportional to 73,082.50, 100,853.94 and 39,548.50 is: 54,576.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,082.50 : 100,853.94 = 39,548.50 : x
  2. Step 2: Convert to fraction form
    73,082.50/100,853.94 = 39,548.50/x
  3. Step 3: Cross multiply
    73,082.50x = 100,853.94 × 39,548.50
  4. Step 4: Simplify right side
    73,082.50x = 3,988,622,046.09
  5. Step 5: Solve for x
    x = 3,988,622,046.09/73,082.50
  6. Step 6: Final answer
    x = 54,576.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.