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Finding the Fourth Proportional to 71,754.46, 99,025.89 and 39,923.43

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Solution

The fourth proportional to 71,754.46, 99,025.89 and 39,923.43 is: 55,096.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,754.46 : 99,025.89 = 39,923.43 : x
  2. Step 2: Convert to fraction form
    71,754.46/99,025.89 = 39,923.43/x
  3. Step 3: Cross multiply
    71,754.46x = 99,025.89 × 39,923.43
  4. Step 4: Simplify right side
    71,754.46x = 3,953,453,187.60
  5. Step 5: Solve for x
    x = 3,953,453,187.60/71,754.46
  6. Step 6: Final answer
    x = 55,096.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.