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Finding the Fourth Proportional to 168,940.26, 253,738.44 and 124,391.07

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Solution

The fourth proportional to 168,940.26, 253,738.44 and 124,391.07 is: 186,828.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,940.26 : 253,738.44 = 124,391.07 : x
  2. Step 2: Convert to fraction form
    168,940.26/253,738.44 = 124,391.07/x
  3. Step 3: Cross multiply
    168,940.26x = 253,738.44 × 124,391.07
  4. Step 4: Simplify right side
    168,940.26x = 31,562,796,051.73
  5. Step 5: Solve for x
    x = 31,562,796,051.73/168,940.26
  6. Step 6: Final answer
    x = 186,828.15

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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.