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Finding the Fourth Proportional to 68,728.64, 103,063.80 and 24,366.56

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Solution

The fourth proportional to 68,728.64, 103,063.80 and 24,366.56 is: 36,539.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,728.64 : 103,063.80 = 24,366.56 : x
  2. Step 2: Convert to fraction form
    68,728.64/103,063.80 = 24,366.56/x
  3. Step 3: Cross multiply
    68,728.64x = 103,063.80 × 24,366.56
  4. Step 4: Simplify right side
    68,728.64x = 2,511,310,266.53
  5. Step 5: Solve for x
    x = 2,511,310,266.53/68,728.64
  6. Step 6: Final answer
    x = 36,539.50

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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.