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Finding the Fourth Proportional to 67,319.04, 92,891.88 and 39,020.88

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Solution

The fourth proportional to 67,319.04, 92,891.88 and 39,020.88 is: 53,843.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,319.04 : 92,891.88 = 39,020.88 : x
  2. Step 2: Convert to fraction form
    67,319.04/92,891.88 = 39,020.88/x
  3. Step 3: Cross multiply
    67,319.04x = 92,891.88 × 39,020.88
  4. Step 4: Simplify right side
    67,319.04x = 3,624,722,902.45
  5. Step 5: Solve for x
    x = 3,624,722,902.45/67,319.04
  6. Step 6: Final answer
    x = 53,843.95

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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.