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Finding the Fourth Proportional to 67,161.86, 92,690.83 and 36,949.67

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Solution

The fourth proportional to 67,161.86, 92,690.83 and 36,949.67 is: 50,994.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,161.86 : 92,690.83 = 36,949.67 : x
  2. Step 2: Convert to fraction form
    67,161.86/92,690.83 = 36,949.67/x
  3. Step 3: Cross multiply
    67,161.86x = 92,690.83 × 36,949.67
  4. Step 4: Simplify right side
    67,161.86x = 3,424,895,510.85
  5. Step 5: Solve for x
    x = 3,424,895,510.85/67,161.86
  6. Step 6: Final answer
    x = 50,994.65

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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.