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Finding the Fourth Proportional to 181,223.70, 271,685.88 and 79,949.58

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Solution

The fourth proportional to 181,223.70, 271,685.88 and 79,949.58 is: 119,858.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,223.70 : 271,685.88 = 79,949.58 : x
  2. Step 2: Convert to fraction form
    181,223.70/271,685.88 = 79,949.58/x
  3. Step 3: Cross multiply
    181,223.70x = 271,685.88 × 79,949.58
  4. Step 4: Simplify right side
    181,223.70x = 21,721,171,997.93
  5. Step 5: Solve for x
    x = 21,721,171,997.93/181,223.70
  6. Step 6: Final answer
    x = 119,858.34

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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.