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Finding the Fourth Proportional to 73,251, 101,086.92 and 39,717

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Solution

The fourth proportional to 73,251, 101,086.92 and 39,717 is: 54,809.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,251 : 101,086.92 = 39,717 : x
  2. Step 2: Convert to fraction form
    73,251/101,086.92 = 39,717/x
  3. Step 3: Cross multiply
    73,251x = 101,086.92 × 39,717
  4. Step 4: Simplify right side
    73,251x = 4,014,869,201.64
  5. Step 5: Solve for x
    x = 4,014,869,201.64/73,251
  6. Step 6: Final answer
    x = 54,809.75

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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.