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Finding the Fourth Proportional to 135,797.06, 203,692.46 and 79,991.18

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Solution

The fourth proportional to 135,797.06, 203,692.46 and 79,991.18 is: 119,984.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,797.06 : 203,692.46 = 79,991.18 : x
  2. Step 2: Convert to fraction form
    135,797.06/203,692.46 = 79,991.18/x
  3. Step 3: Cross multiply
    135,797.06x = 203,692.46 × 79,991.18
  4. Step 4: Simplify right side
    135,797.06x = 16,293,600,232.50
  5. Step 5: Solve for x
    x = 16,293,600,232.50/135,797.06
  6. Step 6: Final answer
    x = 119,984.93

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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.