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Finding the Fourth Proportional to 71,766.72, 107,661.02 and 36,694.53

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Solution

The fourth proportional to 71,766.72, 107,661.02 and 36,694.53 is: 55,047.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,766.72 : 107,661.02 = 36,694.53 : x
  2. Step 2: Convert to fraction form
    71,766.72/107,661.02 = 36,694.53/x
  3. Step 3: Cross multiply
    71,766.72x = 107,661.02 × 36,694.53
  4. Step 4: Simplify right side
    71,766.72x = 3,950,570,344.75
  5. Step 5: Solve for x
    x = 3,950,570,344.75/71,766.72
  6. Step 6: Final answer
    x = 55,047.39

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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.