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Finding the Fourth Proportional to 67,187.60, 92,716.93 and 36,972.91

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Solution

The fourth proportional to 67,187.60, 92,716.93 and 36,972.91 is: 51,021.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,187.60 : 92,716.93 = 36,972.91 : x
  2. Step 2: Convert to fraction form
    67,187.60/92,716.93 = 36,972.91/x
  3. Step 3: Cross multiply
    67,187.60x = 92,716.93 × 36,972.91
  4. Step 4: Simplify right side
    67,187.60x = 3,428,014,523.50
  5. Step 5: Solve for x
    x = 3,428,014,523.50/67,187.60
  6. Step 6: Final answer
    x = 51,021.54

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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.