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Finding the Fourth Proportional to 67,120.65, 92,629.17 and 36,908.46

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Solution

The fourth proportional to 67,120.65, 92,629.17 and 36,908.46 is: 50,935.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,120.65 : 92,629.17 = 36,908.46 : x
  2. Step 2: Convert to fraction form
    67,120.65/92,629.17 = 36,908.46/x
  3. Step 3: Cross multiply
    67,120.65x = 92,629.17 × 36,908.46
  4. Step 4: Simplify right side
    67,120.65x = 3,418,800,015.78
  5. Step 5: Solve for x
    x = 3,418,800,015.78/67,120.65
  6. Step 6: Final answer
    x = 50,935.14

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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.