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Finding the Fourth Proportional to 69,428.96, 104,121.90 and 25,049.94

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Solution

The fourth proportional to 69,428.96, 104,121.90 and 25,049.94 is: 37,567.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,428.96 : 104,121.90 = 25,049.94 : x
  2. Step 2: Convert to fraction form
    69,428.96/104,121.90 = 25,049.94/x
  3. Step 3: Cross multiply
    69,428.96x = 104,121.90 × 25,049.94
  4. Step 4: Simplify right side
    69,428.96x = 2,608,247,347.69
  5. Step 5: Solve for x
    x = 2,608,247,347.69/69,428.96
  6. Step 6: Final answer
    x = 37,567.14

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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.