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Finding the Fourth Proportional to 241,172.30, 361,776.54 and 81,249.14

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Solution

The fourth proportional to 241,172.30, 361,776.54 and 81,249.14 is: 121,879.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,172.30 : 361,776.54 = 81,249.14 : x
  2. Step 2: Convert to fraction form
    241,172.30/361,776.54 = 81,249.14/x
  3. Step 3: Cross multiply
    241,172.30x = 361,776.54 × 81,249.14
  4. Step 4: Simplify right side
    241,172.30x = 29,394,032,747.18
  5. Step 5: Solve for x
    x = 29,394,032,747.18/241,172.30
  6. Step 6: Final answer
    x = 121,879.80

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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.