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Finding the Fourth Proportional to 70,787.36, 106,199.49 and 26,414.48

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Solution

The fourth proportional to 70,787.36, 106,199.49 and 26,414.48 is: 39,628.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,787.36 : 106,199.49 = 26,414.48 : x
  2. Step 2: Convert to fraction form
    70,787.36/106,199.49 = 26,414.48/x
  3. Step 3: Cross multiply
    70,787.36x = 106,199.49 × 26,414.48
  4. Step 4: Simplify right side
    70,787.36x = 2,805,204,304.62
  5. Step 5: Solve for x
    x = 2,805,204,304.62/70,787.36
  6. Step 6: Final answer
    x = 39,628.60

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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.