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Finding the Fourth Proportional to 69,898.75, 104,744.45 and 51,340.03

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Solution

The fourth proportional to 69,898.75, 104,744.45 and 51,340.03 is: 76,933.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,898.75 : 104,744.45 = 51,340.03 : x
  2. Step 2: Convert to fraction form
    69,898.75/104,744.45 = 51,340.03/x
  3. Step 3: Cross multiply
    69,898.75x = 104,744.45 × 51,340.03
  4. Step 4: Simplify right side
    69,898.75x = 5,377,583,372.22
  5. Step 5: Solve for x
    x = 5,377,583,372.22/69,898.75
  6. Step 6: Final answer
    x = 76,933.90

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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.