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Finding the Fourth Proportional to 68,692.22, 102,860.89 and 47,410.63

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Solution

The fourth proportional to 68,692.22, 102,860.89 and 47,410.63 is: 70,993.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,692.22 : 102,860.89 = 47,410.63 : x
  2. Step 2: Convert to fraction form
    68,692.22/102,860.89 = 47,410.63/x
  3. Step 3: Cross multiply
    68,692.22x = 102,860.89 × 47,410.63
  4. Step 4: Simplify right side
    68,692.22x = 4,876,699,597.26
  5. Step 5: Solve for x
    x = 4,876,699,597.26/68,692.22
  6. Step 6: Final answer
    x = 70,993.48

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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.