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Finding the Fourth Proportional to 68,853.70, 103,249.83 and 19,594.18

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Solution

The fourth proportional to 68,853.70, 103,249.83 and 19,594.18 is: 29,382.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,853.70 : 103,249.83 = 19,594.18 : x
  2. Step 2: Convert to fraction form
    68,853.70/103,249.83 = 19,594.18/x
  3. Step 3: Cross multiply
    68,853.70x = 103,249.83 × 19,594.18
  4. Step 4: Simplify right side
    68,853.70x = 2,023,095,753.99
  5. Step 5: Solve for x
    x = 2,023,095,753.99/68,853.70
  6. Step 6: Final answer
    x = 29,382.53

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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.