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Finding the Fourth Proportional to 193,251.60, 289,906.20 and 68,582.16

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Solution

The fourth proportional to 193,251.60, 289,906.20 and 68,582.16 is: 102,883.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,251.60 : 289,906.20 = 68,582.16 : x
  2. Step 2: Convert to fraction form
    193,251.60/289,906.20 = 68,582.16/x
  3. Step 3: Cross multiply
    193,251.60x = 289,906.20 × 68,582.16
  4. Step 4: Simplify right side
    193,251.60x = 19,882,393,393.39
  5. Step 5: Solve for x
    x = 19,882,393,393.39/193,251.60
  6. Step 6: Final answer
    x = 102,883.46

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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.