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Finding the Fourth Proportional to 68,593.74, 103,404.73 and 64,021.54

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Solution

The fourth proportional to 68,593.74, 103,404.73 and 64,021.54 is: 96,512.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,593.74 : 103,404.73 = 64,021.54 : x
  2. Step 2: Convert to fraction form
    68,593.74/103,404.73 = 64,021.54/x
  3. Step 3: Cross multiply
    68,593.74x = 103,404.73 × 64,021.54
  4. Step 4: Simplify right side
    68,593.74x = 6,620,129,737.78
  5. Step 5: Solve for x
    x = 6,620,129,737.78/68,593.74
  6. Step 6: Final answer
    x = 96,512.16

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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.