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Finding the Fourth Proportional to 68,721.71, 103,093.77 and 24,338.84

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Solution

The fourth proportional to 68,721.71, 103,093.77 and 24,338.84 is: 36,512.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,721.71 : 103,093.77 = 24,338.84 : x
  2. Step 2: Convert to fraction form
    68,721.71/103,093.77 = 24,338.84/x
  3. Step 3: Cross multiply
    68,721.71x = 103,093.77 × 24,338.84
  4. Step 4: Simplify right side
    68,721.71x = 2,509,182,773.03
  5. Step 5: Solve for x
    x = 2,509,182,773.03/68,721.71
  6. Step 6: Final answer
    x = 36,512.23

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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.