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Finding the Fourth Proportional to 241,093.80, 361,640.67 and 81,156.30

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Solution

The fourth proportional to 241,093.80, 361,640.67 and 81,156.30 is: 121,734.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,093.80 : 361,640.67 = 81,156.30 : x
  2. Step 2: Convert to fraction form
    241,093.80/361,640.67 = 81,156.30/x
  3. Step 3: Cross multiply
    241,093.80x = 361,640.67 × 81,156.30
  4. Step 4: Simplify right side
    241,093.80x = 29,349,417,046.23
  5. Step 5: Solve for x
    x = 29,349,417,046.23/241,093.80
  6. Step 6: Final answer
    x = 121,734.43

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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.