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Finding the Fourth Proportional to 73,017.71, 100,725.36 and 50,367.90

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Solution

The fourth proportional to 73,017.71, 100,725.36 and 50,367.90 is: 69,480.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,017.71 : 100,725.36 = 50,367.90 : x
  2. Step 2: Convert to fraction form
    73,017.71/100,725.36 = 50,367.90/x
  3. Step 3: Cross multiply
    73,017.71x = 100,725.36 × 50,367.90
  4. Step 4: Simplify right side
    73,017.71x = 5,073,324,859.94
  5. Step 5: Solve for x
    x = 5,073,324,859.94/73,017.71
  6. Step 6: Final answer
    x = 69,480.75

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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.