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Finding the Fourth Proportional to 124,634.73, 171,994.89 and 68,046.09

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Solution

The fourth proportional to 124,634.73, 171,994.89 and 68,046.09 is: 93,903.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,634.73 : 171,994.89 = 68,046.09 : x
  2. Step 2: Convert to fraction form
    124,634.73/171,994.89 = 68,046.09/x
  3. Step 3: Cross multiply
    124,634.73x = 171,994.89 × 68,046.09
  4. Step 4: Simplify right side
    124,634.73x = 11,703,579,764.48
  5. Step 5: Solve for x
    x = 11,703,579,764.48/124,634.73
  6. Step 6: Final answer
    x = 93,903.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.