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Finding the Fourth Proportional to 69,711.25, 104,508.07 and 30,238.63

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Solution

The fourth proportional to 69,711.25, 104,508.07 and 30,238.63 is: 45,332.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,711.25 : 104,508.07 = 30,238.63 : x
  2. Step 2: Convert to fraction form
    69,711.25/104,508.07 = 30,238.63/x
  3. Step 3: Cross multiply
    69,711.25x = 104,508.07 × 30,238.63
  4. Step 4: Simplify right side
    69,711.25x = 3,160,180,860.74
  5. Step 5: Solve for x
    x = 3,160,180,860.74/69,711.25
  6. Step 6: Final answer
    x = 45,332.44

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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.