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Finding the Fourth Proportional to 68,841.72, 103,202.44 and 26,692.76

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Solution

The fourth proportional to 68,841.72, 103,202.44 and 26,692.76 is: 40,015.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,841.72 : 103,202.44 = 26,692.76 : x
  2. Step 2: Convert to fraction form
    68,841.72/103,202.44 = 26,692.76/x
  3. Step 3: Cross multiply
    68,841.72x = 103,202.44 × 26,692.76
  4. Step 4: Simplify right side
    68,841.72x = 2,754,758,153.61
  5. Step 5: Solve for x
    x = 2,754,758,153.61/68,841.72
  6. Step 6: Final answer
    x = 40,015.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.