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Finding the Fourth Proportional to 68,765.98, 94,936.31 and 52,603.46

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Solution

The fourth proportional to 68,765.98, 94,936.31 and 52,603.46 is: 72,622.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,765.98 : 94,936.31 = 52,603.46 : x
  2. Step 2: Convert to fraction form
    68,765.98/94,936.31 = 52,603.46/x
  3. Step 3: Cross multiply
    68,765.98x = 94,936.31 × 52,603.46
  4. Step 4: Simplify right side
    68,765.98x = 4,993,978,517.14
  5. Step 5: Solve for x
    x = 4,993,978,517.14/68,765.98
  6. Step 6: Final answer
    x = 72,622.81

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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.