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Finding the Fourth Proportional to 124,635.73, 171,996.27 and 68,047.09

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Solution

The fourth proportional to 124,635.73, 171,996.27 and 68,047.09 is: 93,904.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,635.73 : 171,996.27 = 68,047.09 : x
  2. Step 2: Convert to fraction form
    124,635.73/171,996.27 = 68,047.09/x
  3. Step 3: Cross multiply
    124,635.73x = 171,996.27 × 68,047.09
  4. Step 4: Simplify right side
    124,635.73x = 11,703,845,664.35
  5. Step 5: Solve for x
    x = 11,703,845,664.35/124,635.73
  6. Step 6: Final answer
    x = 93,904.42

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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.