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Finding the Fourth Proportional to 181,289.80, 271,934.70 and 161,072.20

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Solution

The fourth proportional to 181,289.80, 271,934.70 and 161,072.20 is: 241,608.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,289.80 : 271,934.70 = 161,072.20 : x
  2. Step 2: Convert to fraction form
    181,289.80/271,934.70 = 161,072.20/x
  3. Step 3: Cross multiply
    181,289.80x = 271,934.70 × 161,072.20
  4. Step 4: Simplify right side
    181,289.80x = 43,801,120,385.34
  5. Step 5: Solve for x
    x = 43,801,120,385.34/181,289.80
  6. Step 6: Final answer
    x = 241,608.30

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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.