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Finding the Fourth Proportional to 247,692.72, 371,519.64 and 89,956.56

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Solution

The fourth proportional to 247,692.72, 371,519.64 and 89,956.56 is: 134,927.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,692.72 : 371,519.64 = 89,956.56 : x
  2. Step 2: Convert to fraction form
    247,692.72/371,519.64 = 89,956.56/x
  3. Step 3: Cross multiply
    247,692.72x = 371,519.64 × 89,956.56
  4. Step 4: Simplify right side
    247,692.72x = 33,420,628,786.84
  5. Step 5: Solve for x
    x = 33,420,628,786.84/247,692.72
  6. Step 6: Final answer
    x = 134,927.78

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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.