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Finding the Fourth Proportional to 447,233.88, 670,995.54 and 131,692.44

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Solution

The fourth proportional to 447,233.88, 670,995.54 and 131,692.44 is: 197,581.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,233.88 : 670,995.54 = 131,692.44 : x
  2. Step 2: Convert to fraction form
    447,233.88/670,995.54 = 131,692.44/x
  3. Step 3: Cross multiply
    447,233.88x = 670,995.54 × 131,692.44
  4. Step 4: Simplify right side
    447,233.88x = 88,365,039,891.72
  5. Step 5: Solve for x
    x = 88,365,039,891.72/447,233.88
  6. Step 6: Final answer
    x = 197,581.27

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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.