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Finding the Fourth Proportional to 74,174.67, 110,722.46 and 68,692.59

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Solution

The fourth proportional to 74,174.67, 110,722.46 and 68,692.59 is: 102,539.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,174.67 : 110,722.46 = 68,692.59 : x
  2. Step 2: Convert to fraction form
    74,174.67/110,722.46 = 68,692.59/x
  3. Step 3: Cross multiply
    74,174.67x = 110,722.46 × 68,692.59
  4. Step 4: Simplify right side
    74,174.67x = 7,605,812,205.11
  5. Step 5: Solve for x
    x = 7,605,812,205.11/74,174.67
  6. Step 6: Final answer
    x = 102,539.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.