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Finding the Fourth Proportional to 67,082.64, 100,481.80 and 45,923.42

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Solution

The fourth proportional to 67,082.64, 100,481.80 and 45,923.42 is: 68,787.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,082.64 : 100,481.80 = 45,923.42 : x
  2. Step 2: Convert to fraction form
    67,082.64/100,481.80 = 45,923.42/x
  3. Step 3: Cross multiply
    67,082.64x = 100,481.80 × 45,923.42
  4. Step 4: Simplify right side
    67,082.64x = 4,614,467,903.76
  5. Step 5: Solve for x
    x = 4,614,467,903.76/67,082.64
  6. Step 6: Final answer
    x = 68,787.81

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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.