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Finding the Fourth Proportional to 181,107.90, 271,467.45 and 68,744.70

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Solution

The fourth proportional to 181,107.90, 271,467.45 and 68,744.70 is: 103,043.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,107.90 : 271,467.45 = 68,744.70 : x
  2. Step 2: Convert to fraction form
    181,107.90/271,467.45 = 68,744.70/x
  3. Step 3: Cross multiply
    181,107.90x = 271,467.45 × 68,744.70
  4. Step 4: Simplify right side
    181,107.90x = 18,661,948,410.02
  5. Step 5: Solve for x
    x = 18,661,948,410.02/181,107.90
  6. Step 6: Final answer
    x = 103,043.26

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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.