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Finding the Fourth Proportional to 63,872.87, 95,858.49 and 51,423.39

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Solution

The fourth proportional to 63,872.87, 95,858.49 and 51,423.39 is: 77,174.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,872.87 : 95,858.49 = 51,423.39 : x
  2. Step 2: Convert to fraction form
    63,872.87/95,858.49 = 51,423.39/x
  3. Step 3: Cross multiply
    63,872.87x = 95,858.49 × 51,423.39
  4. Step 4: Simplify right side
    63,872.87x = 4,929,368,516.08
  5. Step 5: Solve for x
    x = 4,929,368,516.08/63,872.87
  6. Step 6: Final answer
    x = 77,174.69

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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.