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Finding the Fourth Proportional to 68,729.89, 103,065.67 and 24,367.81

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Solution

The fourth proportional to 68,729.89, 103,065.67 and 24,367.81 is: 36,541.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,729.89 : 103,065.67 = 24,367.81 : x
  2. Step 2: Convert to fraction form
    68,729.89/103,065.67 = 24,367.81/x
  3. Step 3: Cross multiply
    68,729.89x = 103,065.67 × 24,367.81
  4. Step 4: Simplify right side
    68,729.89x = 2,511,484,664.08
  5. Step 5: Solve for x
    x = 2,511,484,664.08/68,729.89
  6. Step 6: Final answer
    x = 36,541.37

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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.