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Finding the Fourth Proportional to 69,459, 104,193.66 and 27,906.12

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Solution

The fourth proportional to 69,459, 104,193.66 and 27,906.12 is: 41,861.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,459 : 104,193.66 = 27,906.12 : x
  2. Step 2: Convert to fraction form
    69,459/104,193.66 = 27,906.12/x
  3. Step 3: Cross multiply
    69,459x = 104,193.66 × 27,906.12
  4. Step 4: Simplify right side
    69,459x = 2,907,640,779.20
  5. Step 5: Solve for x
    x = 2,907,640,779.20/69,459
  6. Step 6: Final answer
    x = 41,861.25

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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.