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Finding the Fourth Proportional to 202,529.36, 303,870.60 and 84,190.76

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Solution

The fourth proportional to 202,529.36, 303,870.60 and 84,190.76 is: 126,317.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,529.36 : 303,870.60 = 84,190.76 : x
  2. Step 2: Convert to fraction form
    202,529.36/303,870.60 = 84,190.76/x
  3. Step 3: Cross multiply
    202,529.36x = 303,870.60 × 84,190.76
  4. Step 4: Simplify right side
    202,529.36x = 25,583,096,755.66
  5. Step 5: Solve for x
    x = 25,583,096,755.66/202,529.36
  6. Step 6: Final answer
    x = 126,317.97

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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.