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Finding the Fourth Proportional to 84,081.96, 125,950.61 and 67,351.41

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Solution

The fourth proportional to 84,081.96, 125,950.61 and 67,351.41 is: 100,889.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,081.96 : 125,950.61 = 67,351.41 : x
  2. Step 2: Convert to fraction form
    84,081.96/125,950.61 = 67,351.41/x
  3. Step 3: Cross multiply
    84,081.96x = 125,950.61 × 67,351.41
  4. Step 4: Simplify right side
    84,081.96x = 8,482,951,342.24
  5. Step 5: Solve for x
    x = 8,482,951,342.24/84,081.96
  6. Step 6: Final answer
    x = 100,889.08

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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.