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Finding the Fourth Proportional to 67,243.20, 100,864.80 and 44,692.80

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Solution

The fourth proportional to 67,243.20, 100,864.80 and 44,692.80 is: 67,039.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,243.20 : 100,864.80 = 44,692.80 : x
  2. Step 2: Convert to fraction form
    67,243.20/100,864.80 = 44,692.80/x
  3. Step 3: Cross multiply
    67,243.20x = 100,864.80 × 44,692.80
  4. Step 4: Simplify right side
    67,243.20x = 4,507,930,333.44
  5. Step 5: Solve for x
    x = 4,507,930,333.44/67,243.20
  6. Step 6: Final answer
    x = 67,039.20

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1.5x scale

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.