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Finding the Fourth Proportional to 103,846.25, 155,665.87 and 43,889.85

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Solution

The fourth proportional to 103,846.25, 155,665.87 and 43,889.85 is: 65,791.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,846.25 : 155,665.87 = 43,889.85 : x
  2. Step 2: Convert to fraction form
    103,846.25/155,665.87 = 43,889.85/x
  3. Step 3: Cross multiply
    103,846.25x = 155,665.87 × 43,889.85
  4. Step 4: Simplify right side
    103,846.25x = 6,832,151,574.69
  5. Step 5: Solve for x
    x = 6,832,151,574.69/103,846.25
  6. Step 6: Final answer
    x = 65,791.03

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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.