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Finding the Fourth Proportional to 68,651.36, 103,035.36 and 27,127.52

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Solution

The fourth proportional to 68,651.36, 103,035.36 and 27,127.52 is: 40,714.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,651.36 : 103,035.36 = 27,127.52 : x
  2. Step 2: Convert to fraction form
    68,651.36/103,035.36 = 27,127.52/x
  3. Step 3: Cross multiply
    68,651.36x = 103,035.36 × 27,127.52
  4. Step 4: Simplify right side
    68,651.36x = 2,795,093,789.11
  5. Step 5: Solve for x
    x = 2,795,093,789.11/68,651.36
  6. Step 6: Final answer
    x = 40,714.33

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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.