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Finding the Fourth Proportional to 83,771.76, 115,497.24 and 68,608.56

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Solution

The fourth proportional to 83,771.76, 115,497.24 and 68,608.56 is: 94,591.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,771.76 : 115,497.24 = 68,608.56 : x
  2. Step 2: Convert to fraction form
    83,771.76/115,497.24 = 68,608.56/x
  3. Step 3: Cross multiply
    83,771.76x = 115,497.24 × 68,608.56
  4. Step 4: Simplify right side
    83,771.76x = 7,924,099,320.37
  5. Step 5: Solve for x
    x = 7,924,099,320.37/83,771.76
  6. Step 6: Final answer
    x = 94,591.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.