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Finding the Fourth Proportional to 107,321.96, 148,074.28 and 67,076.61

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Solution

The fourth proportional to 107,321.96, 148,074.28 and 67,076.61 is: 92,546.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,321.96 : 148,074.28 = 67,076.61 : x
  2. Step 2: Convert to fraction form
    107,321.96/148,074.28 = 67,076.61/x
  3. Step 3: Cross multiply
    107,321.96x = 148,074.28 × 67,076.61
  4. Step 4: Simplify right side
    107,321.96x = 9,932,320,007.62
  5. Step 5: Solve for x
    x = 9,932,320,007.62/107,321.96
  6. Step 6: Final answer
    x = 92,546.95

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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.