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Finding the Fourth Proportional to 68,751.50, 94,805.11 and 50,883.98

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Solution

The fourth proportional to 68,751.50, 94,805.11 and 50,883.98 is: 70,166.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,751.50 : 94,805.11 = 50,883.98 : x
  2. Step 2: Convert to fraction form
    68,751.50/94,805.11 = 50,883.98/x
  3. Step 3: Cross multiply
    68,751.50x = 94,805.11 × 50,883.98
  4. Step 4: Simplify right side
    68,751.50x = 4,824,061,321.14
  5. Step 5: Solve for x
    x = 4,824,061,321.14/68,751.50
  6. Step 6: Final answer
    x = 70,166.63

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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.