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Finding the Fourth Proportional to 68,974.25, 103,468.66 and 29,520.77

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Solution

The fourth proportional to 68,974.25, 103,468.66 and 29,520.77 is: 44,284.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,974.25 : 103,468.66 = 29,520.77 : x
  2. Step 2: Convert to fraction form
    68,974.25/103,468.66 = 29,520.77/x
  3. Step 3: Cross multiply
    68,974.25x = 103,468.66 × 29,520.77
  4. Step 4: Simplify right side
    68,974.25x = 3,054,473,922.92
  5. Step 5: Solve for x
    x = 3,054,473,922.92/68,974.25
  6. Step 6: Final answer
    x = 44,284.27

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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.