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Finding the Fourth Proportional to 133,778.88, 200,679.26 and 67,184.73

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Solution

The fourth proportional to 133,778.88, 200,679.26 and 67,184.73 is: 100,782.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,778.88 : 200,679.26 = 67,184.73 : x
  2. Step 2: Convert to fraction form
    133,778.88/200,679.26 = 67,184.73/x
  3. Step 3: Cross multiply
    133,778.88x = 200,679.26 × 67,184.73
  4. Step 4: Simplify right side
    133,778.88x = 13,482,581,563.78
  5. Step 5: Solve for x
    x = 13,482,581,563.78/133,778.88
  6. Step 6: Final answer
    x = 100,782.59

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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.