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Finding the Fourth Proportional to 69,438.33, 104,267.25 and 67,167.90

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Solution

The fourth proportional to 69,438.33, 104,267.25 and 67,167.90 is: 100,858.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,438.33 : 104,267.25 = 67,167.90 : x
  2. Step 2: Convert to fraction form
    69,438.33/104,267.25 = 67,167.90/x
  3. Step 3: Cross multiply
    69,438.33x = 104,267.25 × 67,167.90
  4. Step 4: Simplify right side
    69,438.33x = 7,003,412,221.28
  5. Step 5: Solve for x
    x = 7,003,412,221.28/69,438.33
  6. Step 6: Final answer
    x = 100,858.02

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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.