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Finding the Fourth Proportional to 126,057.62, 173,959.54 and 68,696.96

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Solution

The fourth proportional to 126,057.62, 173,959.54 and 68,696.96 is: 94,801.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,057.62 : 173,959.54 = 68,696.96 : x
  2. Step 2: Convert to fraction form
    126,057.62/173,959.54 = 68,696.96/x
  3. Step 3: Cross multiply
    126,057.62x = 173,959.54 × 68,696.96
  4. Step 4: Simplify right side
    126,057.62x = 11,950,490,691.20
  5. Step 5: Solve for x
    x = 11,950,490,691.20/126,057.62
  6. Step 6: Final answer
    x = 94,801.81

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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.