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Finding the Fourth Proportional to 67,134.79, 92,643.51 and 36,919.80

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Solution

The fourth proportional to 67,134.79, 92,643.51 and 36,919.80 is: 50,947.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,134.79 : 92,643.51 = 36,919.80 : x
  2. Step 2: Convert to fraction form
    67,134.79/92,643.51 = 36,919.80/x
  3. Step 3: Cross multiply
    67,134.79x = 92,643.51 × 36,919.80
  4. Step 4: Simplify right side
    67,134.79x = 3,420,379,998.95
  5. Step 5: Solve for x
    x = 3,420,379,998.95/67,134.79
  6. Step 6: Final answer
    x = 50,947.95

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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.