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Finding the Fourth Proportional to 123,796.67, 170,839.58 and 67,208.04

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Solution

The fourth proportional to 123,796.67, 170,839.58 and 67,208.04 is: 92,747.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,796.67 : 170,839.58 = 67,208.04 : x
  2. Step 2: Convert to fraction form
    123,796.67/170,839.58 = 67,208.04/x
  3. Step 3: Cross multiply
    123,796.67x = 170,839.58 × 67,208.04
  4. Step 4: Simplify right side
    123,796.67x = 11,481,792,990.18
  5. Step 5: Solve for x
    x = 11,481,792,990.18/123,796.67
  6. Step 6: Final answer
    x = 92,747.19

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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.