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Finding the Fourth Proportional to 69,135.48, 103,698.72 and 34,044.12

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Solution

The fourth proportional to 69,135.48, 103,698.72 and 34,044.12 is: 51,063.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,135.48 : 103,698.72 = 34,044.12 : x
  2. Step 2: Convert to fraction form
    69,135.48/103,698.72 = 34,044.12/x
  3. Step 3: Cross multiply
    69,135.48x = 103,698.72 × 34,044.12
  4. Step 4: Simplify right side
    69,135.48x = 3,530,331,667.53
  5. Step 5: Solve for x
    x = 3,530,331,667.53/69,135.48
  6. Step 6: Final answer
    x = 51,063.96

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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.