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Finding the Fourth Proportional to 241,141.05, 361,763.42 and 81,232.88

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Solution

The fourth proportional to 241,141.05, 361,763.42 and 81,232.88 is: 121,866.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,141.05 : 361,763.42 = 81,232.88 : x
  2. Step 2: Convert to fraction form
    241,141.05/361,763.42 = 81,232.88/x
  3. Step 3: Cross multiply
    241,141.05x = 361,763.42 × 81,232.88
  4. Step 4: Simplify right side
    241,141.05x = 29,387,082,270.27
  5. Step 5: Solve for x
    x = 29,387,082,270.27/241,141.05
  6. Step 6: Final answer
    x = 121,866.78

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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.