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Finding the Fourth Proportional to 126,057.65, 173,959.59 and 68,696.98

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Solution

The fourth proportional to 126,057.65, 173,959.59 and 68,696.98 is: 94,801.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,057.65 : 173,959.59 = 68,696.98 : x
  2. Step 2: Convert to fraction form
    126,057.65/173,959.59 = 68,696.98/x
  3. Step 3: Cross multiply
    126,057.65x = 173,959.59 × 68,696.98
  4. Step 4: Simplify right side
    126,057.65x = 11,950,498,131.55
  5. Step 5: Solve for x
    x = 11,950,498,131.55/126,057.65
  6. Step 6: Final answer
    x = 94,801.85

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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.