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Finding the Fourth Proportional to 96,611.60, 144,744.60 and 82,787.60

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Solution

The fourth proportional to 96,611.60, 144,744.60 and 82,787.60 is: 124,033.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,611.60 : 144,744.60 = 82,787.60 : x
  2. Step 2: Convert to fraction form
    96,611.60/144,744.60 = 82,787.60/x
  3. Step 3: Cross multiply
    96,611.60x = 144,744.60 × 82,787.60
  4. Step 4: Simplify right side
    96,611.60x = 11,983,058,046.96
  5. Step 5: Solve for x
    x = 11,983,058,046.96/96,611.60
  6. Step 6: Final answer
    x = 124,033.33

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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.