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Finding the Fourth Proportional to 68,578.97, 94,692.67 and 52,638.17

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Solution

The fourth proportional to 68,578.97, 94,692.67 and 52,638.17 is: 72,681.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,578.97 : 94,692.67 = 52,638.17 : x
  2. Step 2: Convert to fraction form
    68,578.97/94,692.67 = 52,638.17/x
  3. Step 3: Cross multiply
    68,578.97x = 94,692.67 × 52,638.17
  4. Step 4: Simplify right side
    68,578.97x = 4,984,448,598.02
  5. Step 5: Solve for x
    x = 4,984,448,598.02/68,578.97
  6. Step 6: Final answer
    x = 72,681.88

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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.