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Finding the Fourth Proportional to 67,129.74, 92,639.04 and 36,917.09

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Solution

The fourth proportional to 67,129.74, 92,639.04 and 36,917.09 is: 50,945.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,129.74 : 92,639.04 = 36,917.09 : x
  2. Step 2: Convert to fraction form
    67,129.74/92,639.04 = 36,917.09/x
  3. Step 3: Cross multiply
    67,129.74x = 92,639.04 × 36,917.09
  4. Step 4: Simplify right side
    67,129.74x = 3,419,963,991.16
  5. Step 5: Solve for x
    x = 3,419,963,991.16/67,129.74
  6. Step 6: Final answer
    x = 50,945.59

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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.