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Finding the Fourth Proportional to 68,812.72, 103,194.30 and 23,821.85

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Solution

The fourth proportional to 68,812.72, 103,194.30 and 23,821.85 is: 35,724.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,812.72 : 103,194.30 = 23,821.85 : x
  2. Step 2: Convert to fraction form
    68,812.72/103,194.30 = 23,821.85/x
  3. Step 3: Cross multiply
    68,812.72x = 103,194.30 × 23,821.85
  4. Step 4: Simplify right side
    68,812.72x = 2,458,279,482.77
  5. Step 5: Solve for x
    x = 2,458,279,482.77/68,812.72
  6. Step 6: Final answer
    x = 35,724.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.