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Finding the Fourth Proportional to 215,912.44, 323,872.72 and 73,790.24

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Solution

The fourth proportional to 215,912.44, 323,872.72 and 73,790.24 is: 110,686.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,912.44 : 323,872.72 = 73,790.24 : x
  2. Step 2: Convert to fraction form
    215,912.44/323,872.72 = 73,790.24/x
  3. Step 3: Cross multiply
    215,912.44x = 323,872.72 × 73,790.24
  4. Step 4: Simplify right side
    215,912.44x = 23,898,645,738.25
  5. Step 5: Solve for x
    x = 23,898,645,738.25/215,912.44
  6. Step 6: Final answer
    x = 110,686.75

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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.