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Finding the Fourth Proportional to 73,076.71, 100,766.83 and 63,433.97

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Solution

The fourth proportional to 73,076.71, 100,766.83 and 63,433.97 is: 87,470.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,076.71 : 100,766.83 = 63,433.97 : x
  2. Step 2: Convert to fraction form
    73,076.71/100,766.83 = 63,433.97/x
  3. Step 3: Cross multiply
    73,076.71x = 100,766.83 × 63,433.97
  4. Step 4: Simplify right side
    73,076.71x = 6,392,039,567.38
  5. Step 5: Solve for x
    x = 6,392,039,567.38/73,076.71
  6. Step 6: Final answer
    x = 87,470.27

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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.