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Finding the Fourth Proportional to 200,571.24, 300,871.98 and 67,451.88

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Solution

The fourth proportional to 200,571.24, 300,871.98 and 67,451.88 is: 101,182.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,571.24 : 300,871.98 = 67,451.88 : x
  2. Step 2: Convert to fraction form
    200,571.24/300,871.98 = 67,451.88/x
  3. Step 3: Cross multiply
    200,571.24x = 300,871.98 × 67,451.88
  4. Step 4: Simplify right side
    200,571.24x = 20,294,380,690.32
  5. Step 5: Solve for x
    x = 20,294,380,690.32/200,571.24
  6. Step 6: Final answer
    x = 101,182.90

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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.