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Finding the Fourth Proportional to 203,635.77, 305,503.05 and 61,472.57

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Solution

The fourth proportional to 203,635.77, 305,503.05 and 61,472.57 is: 92,223.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,635.77 : 305,503.05 = 61,472.57 : x
  2. Step 2: Convert to fraction form
    203,635.77/305,503.05 = 61,472.57/x
  3. Step 3: Cross multiply
    203,635.77x = 305,503.05 × 61,472.57
  4. Step 4: Simplify right side
    203,635.77x = 18,780,056,098.82
  5. Step 5: Solve for x
    x = 18,780,056,098.82/203,635.77
  6. Step 6: Final answer
    x = 92,223.76

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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.