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Finding the Fourth Proportional to 107,190.57, 160,787.21 and 40,612.82

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Solution

The fourth proportional to 107,190.57, 160,787.21 and 40,612.82 is: 60,919.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,190.57 : 160,787.21 = 40,612.82 : x
  2. Step 2: Convert to fraction form
    107,190.57/160,787.21 = 40,612.82/x
  3. Step 3: Cross multiply
    107,190.57x = 160,787.21 × 40,612.82
  4. Step 4: Simplify right side
    107,190.57x = 6,530,021,315.63
  5. Step 5: Solve for x
    x = 6,530,021,315.63/107,190.57
  6. Step 6: Final answer
    x = 60,919.74

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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.