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Finding the Fourth Proportional to 181,078.43, 271,664.72 and 68,759.27

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Solution

The fourth proportional to 181,078.43, 271,664.72 and 68,759.27 is: 103,156.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,078.43 : 271,664.72 = 68,759.27 : x
  2. Step 2: Convert to fraction form
    181,078.43/271,664.72 = 68,759.27/x
  3. Step 3: Cross multiply
    181,078.43x = 271,664.72 × 68,759.27
  4. Step 4: Simplify right side
    181,078.43x = 18,679,466,129.83
  5. Step 5: Solve for x
    x = 18,679,466,129.83/181,078.43
  6. Step 6: Final answer
    x = 103,156.77

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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.