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Finding the Fourth Proportional to 68,651.50, 94,751.34 and 49,843.30

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Solution

The fourth proportional to 68,651.50, 94,751.34 and 49,843.30 is: 68,792.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,651.50 : 94,751.34 = 49,843.30 : x
  2. Step 2: Convert to fraction form
    68,651.50/94,751.34 = 49,843.30/x
  3. Step 3: Cross multiply
    68,651.50x = 94,751.34 × 49,843.30
  4. Step 4: Simplify right side
    68,651.50x = 4,722,719,465.02
  5. Step 5: Solve for x
    x = 4,722,719,465.02/68,651.50
  6. Step 6: Final answer
    x = 68,792.66

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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.