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Finding the Fourth Proportional to 203,350.50, 305,025.75 and 55,606.50

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Solution

The fourth proportional to 203,350.50, 305,025.75 and 55,606.50 is: 83,409.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,350.50 : 305,025.75 = 55,606.50 : x
  2. Step 2: Convert to fraction form
    203,350.50/305,025.75 = 55,606.50/x
  3. Step 3: Cross multiply
    203,350.50x = 305,025.75 × 55,606.50
  4. Step 4: Simplify right side
    203,350.50x = 16,961,414,367.38
  5. Step 5: Solve for x
    x = 16,961,414,367.38/203,350.50
  6. Step 6: Final answer
    x = 83,409.75

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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.