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Finding the Fourth Proportional to 63,711.44, 87,629.52 and 51,108.56

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Solution

The fourth proportional to 63,711.44, 87,629.52 and 51,108.56 is: 70,295.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,711.44 : 87,629.52 = 51,108.56 : x
  2. Step 2: Convert to fraction form
    63,711.44/87,629.52 = 51,108.56/x
  3. Step 3: Cross multiply
    63,711.44x = 87,629.52 × 51,108.56
  4. Step 4: Simplify right side
    63,711.44x = 4,478,618,580.69
  5. Step 5: Solve for x
    x = 4,478,618,580.69/63,711.44
  6. Step 6: Final answer
    x = 70,295.36

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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.