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Finding the Fourth Proportional to 191,766.33, 264,760.79 and 123,813.81

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Solution

The fourth proportional to 191,766.33, 264,760.79 and 123,813.81 is: 170,942.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,766.33 : 264,760.79 = 123,813.81 : x
  2. Step 2: Convert to fraction form
    191,766.33/264,760.79 = 123,813.81/x
  3. Step 3: Cross multiply
    191,766.33x = 264,760.79 × 123,813.81
  4. Step 4: Simplify right side
    191,766.33x = 32,781,041,529.44
  5. Step 5: Solve for x
    x = 32,781,041,529.44/191,766.33
  6. Step 6: Final answer
    x = 170,942.63

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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.