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Finding the Fourth Proportional to 100,638.30, 150,975.90 and 41,441.68

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Solution

The fourth proportional to 100,638.30, 150,975.90 and 41,441.68 is: 62,170.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,638.30 : 150,975.90 = 41,441.68 : x
  2. Step 2: Convert to fraction form
    100,638.30/150,975.90 = 41,441.68/x
  3. Step 3: Cross multiply
    100,638.30x = 150,975.90 × 41,441.68
  4. Step 4: Simplify right side
    100,638.30x = 6,256,694,274.99
  5. Step 5: Solve for x
    x = 6,256,694,274.99/100,638.30
  6. Step 6: Final answer
    x = 62,170.11

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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.