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Finding the Fourth Proportional to 68,692.20, 94,702.16 and 58,727.68

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Solution

The fourth proportional to 68,692.20, 94,702.16 and 58,727.68 is: 80,964.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,692.20 : 94,702.16 = 58,727.68 : x
  2. Step 2: Convert to fraction form
    68,692.20/94,702.16 = 58,727.68/x
  3. Step 3: Cross multiply
    68,692.20x = 94,702.16 × 58,727.68
  4. Step 4: Simplify right side
    68,692.20x = 5,561,638,147.79
  5. Step 5: Solve for x
    x = 5,561,638,147.79/68,692.20
  6. Step 6: Final answer
    x = 80,964.62

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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.