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Finding the Fourth Proportional to 109,379.44, 150,868.20 and 83,951.92

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Solution

The fourth proportional to 109,379.44, 150,868.20 and 83,951.92 is: 115,795.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,379.44 : 150,868.20 = 83,951.92 : x
  2. Step 2: Convert to fraction form
    109,379.44/150,868.20 = 83,951.92/x
  3. Step 3: Cross multiply
    109,379.44x = 150,868.20 × 83,951.92
  4. Step 4: Simplify right side
    109,379.44x = 12,665,675,056.94
  5. Step 5: Solve for x
    x = 12,665,675,056.94/109,379.44
  6. Step 6: Final answer
    x = 115,795.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.