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Finding the Fourth Proportional to 133,847.70, 200,771.55 and 54,921.30

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Solution

The fourth proportional to 133,847.70, 200,771.55 and 54,921.30 is: 82,381.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,847.70 : 200,771.55 = 54,921.30 : x
  2. Step 2: Convert to fraction form
    133,847.70/200,771.55 = 54,921.30/x
  3. Step 3: Cross multiply
    133,847.70x = 200,771.55 × 54,921.30
  4. Step 4: Simplify right side
    133,847.70x = 11,026,634,529.02
  5. Step 5: Solve for x
    x = 11,026,634,529.02/133,847.70
  6. Step 6: Final answer
    x = 82,381.95

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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.