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Finding the Fourth Proportional to 68,617.70, 94,692.41 and 38,403.02

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Solution

The fourth proportional to 68,617.70, 94,692.41 and 38,403.02 is: 52,996.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,617.70 : 94,692.41 = 38,403.02 : x
  2. Step 2: Convert to fraction form
    68,617.70/94,692.41 = 38,403.02/x
  3. Step 3: Cross multiply
    68,617.70x = 94,692.41 × 38,403.02
  4. Step 4: Simplify right side
    68,617.70x = 3,636,474,099.15
  5. Step 5: Solve for x
    x = 3,636,474,099.15/68,617.70
  6. Step 6: Final answer
    x = 52,996.15

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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.