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Finding the Fourth Proportional to 119,942.92, 179,685.42 and 67,192.84

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Solution

The fourth proportional to 119,942.92, 179,685.42 and 67,192.84 is: 100,661.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,942.92 : 179,685.42 = 67,192.84 : x
  2. Step 2: Convert to fraction form
    119,942.92/179,685.42 = 67,192.84/x
  3. Step 3: Cross multiply
    119,942.92x = 179,685.42 × 67,192.84
  4. Step 4: Simplify right side
    119,942.92x = 12,073,573,676.39
  5. Step 5: Solve for x
    x = 12,073,573,676.39/119,942.92
  6. Step 6: Final answer
    x = 100,661.00

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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.