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Finding the Fourth Proportional to 69,884.88, 104,781.12 and 25,503.36

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Solution

The fourth proportional to 69,884.88, 104,781.12 and 25,503.36 is: 38,238.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,884.88 : 104,781.12 = 25,503.36 : x
  2. Step 2: Convert to fraction form
    69,884.88/104,781.12 = 25,503.36/x
  3. Step 3: Cross multiply
    69,884.88x = 104,781.12 × 25,503.36
  4. Step 4: Simplify right side
    69,884.88x = 2,672,270,624.56
  5. Step 5: Solve for x
    x = 2,672,270,624.56/69,884.88
  6. Step 6: Final answer
    x = 38,238.18

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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.