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Finding the Fourth Proportional to 68,593.46, 103,404.29 and 64,021.25

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Solution

The fourth proportional to 68,593.46, 103,404.29 and 64,021.25 is: 96,511.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,593.46 : 103,404.29 = 64,021.25 : x
  2. Step 2: Convert to fraction form
    68,593.46/103,404.29 = 64,021.25/x
  3. Step 3: Cross multiply
    68,593.46x = 103,404.29 × 64,021.25
  4. Step 4: Simplify right side
    68,593.46x = 6,620,071,839.57
  5. Step 5: Solve for x
    x = 6,620,071,839.57/68,593.46
  6. Step 6: Final answer
    x = 96,511.71

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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.