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Finding the Fourth Proportional to 263,761.91, 395,643.32 and 64,082.43

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Solution

The fourth proportional to 263,761.91, 395,643.32 and 64,082.43 is: 96,123.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,761.91 : 395,643.32 = 64,082.43 : x
  2. Step 2: Convert to fraction form
    263,761.91/395,643.32 = 64,082.43/x
  3. Step 3: Cross multiply
    263,761.91x = 395,643.32 × 64,082.43
  4. Step 4: Simplify right side
    263,761.91x = 25,353,785,038.46
  5. Step 5: Solve for x
    x = 25,353,785,038.46/263,761.91
  6. Step 6: Final answer
    x = 96,123.76

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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.