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Finding the Fourth Proportional to 68,812.59, 103,194.12 and 23,821.74

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Solution

The fourth proportional to 68,812.59, 103,194.12 and 23,821.74 is: 35,724.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,812.59 : 103,194.12 = 23,821.74 : x
  2. Step 2: Convert to fraction form
    68,812.59/103,194.12 = 23,821.74/x
  3. Step 3: Cross multiply
    68,812.59x = 103,194.12 × 23,821.74
  4. Step 4: Simplify right side
    68,812.59x = 2,458,263,496.17
  5. Step 5: Solve for x
    x = 2,458,263,496.17/68,812.59
  6. Step 6: Final answer
    x = 35,724.04

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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.