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Finding the Fourth Proportional to 73,199.43, 101,015.27 and 39,665.43

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Solution

The fourth proportional to 73,199.43, 101,015.27 and 39,665.43 is: 54,738.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,199.43 : 101,015.27 = 39,665.43 : x
  2. Step 2: Convert to fraction form
    73,199.43/101,015.27 = 39,665.43/x
  3. Step 3: Cross multiply
    73,199.43x = 101,015.27 × 39,665.43
  4. Step 4: Simplify right side
    73,199.43x = 4,006,813,922.79
  5. Step 5: Solve for x
    x = 4,006,813,922.79/73,199.43
  6. Step 6: Final answer
    x = 54,738.32

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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.