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Finding the Fourth Proportional to 132,469.15, 198,787.02 and 123,957.79

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Solution

The fourth proportional to 132,469.15, 198,787.02 and 123,957.79 is: 186,014.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,469.15 : 198,787.02 = 123,957.79 : x
  2. Step 2: Convert to fraction form
    132,469.15/198,787.02 = 123,957.79/x
  3. Step 3: Cross multiply
    132,469.15x = 198,787.02 × 123,957.79
  4. Step 4: Simplify right side
    132,469.15x = 24,641,200,707.83
  5. Step 5: Solve for x
    x = 24,641,200,707.83/132,469.15
  6. Step 6: Final answer
    x = 186,014.63

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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.