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Finding the Fourth Proportional to 218,500.74, 327,692.79 and 60,737.85

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Solution

The fourth proportional to 218,500.74, 327,692.79 and 60,737.85 is: 91,090.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,500.74 : 327,692.79 = 60,737.85 : x
  2. Step 2: Convert to fraction form
    218,500.74/327,692.79 = 60,737.85/x
  3. Step 3: Cross multiply
    218,500.74x = 327,692.79 × 60,737.85
  4. Step 4: Simplify right side
    218,500.74x = 19,903,355,525.10
  5. Step 5: Solve for x
    x = 19,903,355,525.10/218,500.74
  6. Step 6: Final answer
    x = 91,090.56

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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.