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Finding the Fourth Proportional to 73,076.21, 100,766.14 and 63,433.47

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Solution

The fourth proportional to 73,076.21, 100,766.14 and 63,433.47 is: 87,469.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,076.21 : 100,766.14 = 63,433.47 : x
  2. Step 2: Convert to fraction form
    73,076.21/100,766.14 = 63,433.47/x
  3. Step 3: Cross multiply
    73,076.21x = 100,766.14 × 63,433.47
  4. Step 4: Simplify right side
    73,076.21x = 6,391,945,414.88
  5. Step 5: Solve for x
    x = 6,391,945,414.88/73,076.21
  6. Step 6: Final answer
    x = 87,469.58

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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.