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Finding the Fourth Proportional to 69,874.60, 104,811.92 and 23,131.12

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Solution

The fourth proportional to 69,874.60, 104,811.92 and 23,131.12 is: 34,696.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,874.60 : 104,811.92 = 23,131.12 : x
  2. Step 2: Convert to fraction form
    69,874.60/104,811.92 = 23,131.12/x
  3. Step 3: Cross multiply
    69,874.60x = 104,811.92 × 23,131.12
  4. Step 4: Simplify right side
    69,874.60x = 2,424,417,098.95
  5. Step 5: Solve for x
    x = 2,424,417,098.95/69,874.60
  6. Step 6: Final answer
    x = 34,696.69

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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.