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Finding the Fourth Proportional to 69,438.98, 104,163.36 and 34,369.22

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Solution

The fourth proportional to 69,438.98, 104,163.36 and 34,369.22 is: 51,556.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,438.98 : 104,163.36 = 34,369.22 : x
  2. Step 2: Convert to fraction form
    69,438.98/104,163.36 = 34,369.22/x
  3. Step 3: Cross multiply
    69,438.98x = 104,163.36 × 34,369.22
  4. Step 4: Simplify right side
    69,438.98x = 3,580,013,370.02
  5. Step 5: Solve for x
    x = 3,580,013,370.02/69,438.98
  6. Step 6: Final answer
    x = 51,556.25

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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.