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Finding the Fourth Proportional to 67,133.79, 92,642.79 and 36,919.11

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Solution

The fourth proportional to 67,133.79, 92,642.79 and 36,919.11 is: 50,947.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,133.79 : 92,642.79 = 36,919.11 : x
  2. Step 2: Convert to fraction form
    67,133.79/92,642.79 = 36,919.11/x
  3. Step 3: Cross multiply
    67,133.79x = 92,642.79 × 36,919.11
  4. Step 4: Simplify right side
    67,133.79x = 3,420,289,563.68
  5. Step 5: Solve for x
    x = 3,420,289,563.68/67,133.79
  6. Step 6: Final answer
    x = 50,947.36

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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.