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Finding the Fourth Proportional to 68,593.64, 103,404.56 and 64,021.44

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Solution

The fourth proportional to 68,593.64, 103,404.56 and 64,021.44 is: 96,511.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,593.64 : 103,404.56 = 64,021.44 : x
  2. Step 2: Convert to fraction form
    68,593.64/103,404.56 = 64,021.44/x
  3. Step 3: Cross multiply
    68,593.64x = 103,404.56 × 64,021.44
  4. Step 4: Simplify right side
    68,593.64x = 6,620,108,833.77
  5. Step 5: Solve for x
    x = 6,620,108,833.77/68,593.64
  6. Step 6: Final answer
    x = 96,511.99

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.