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Finding the Fourth Proportional to 66,786.62, 92,165.69 and 36,160.04

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Solution

The fourth proportional to 66,786.62, 92,165.69 and 36,160.04 is: 49,900.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,786.62 : 92,165.69 = 36,160.04 : x
  2. Step 2: Convert to fraction form
    66,786.62/92,165.69 = 36,160.04/x
  3. Step 3: Cross multiply
    66,786.62x = 92,165.69 × 36,160.04
  4. Step 4: Simplify right side
    66,786.62x = 3,332,715,357.84
  5. Step 5: Solve for x
    x = 3,332,715,357.84/66,786.62
  6. Step 6: Final answer
    x = 49,900.95

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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.