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Finding the Fourth Proportional to 181,091.76, 271,662.41 and 68,783.77

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Solution

The fourth proportional to 181,091.76, 271,662.41 and 68,783.77 is: 103,185.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,091.76 : 271,662.41 = 68,783.77 : x
  2. Step 2: Convert to fraction form
    181,091.76/271,662.41 = 68,783.77/x
  3. Step 3: Cross multiply
    181,091.76x = 271,662.41 × 68,783.77
  4. Step 4: Simplify right side
    181,091.76x = 18,685,964,727.09
  5. Step 5: Solve for x
    x = 18,685,964,727.09/181,091.76
  6. Step 6: Final answer
    x = 103,185.06

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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.