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Finding the Fourth Proportional to 100,650.20, 150,975.66 and 30,530.12

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Solution

The fourth proportional to 100,650.20, 150,975.66 and 30,530.12 is: 45,795.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,650.20 : 150,975.66 = 30,530.12 : x
  2. Step 2: Convert to fraction form
    100,650.20/150,975.66 = 30,530.12/x
  3. Step 3: Cross multiply
    100,650.20x = 150,975.66 × 30,530.12
  4. Step 4: Simplify right side
    100,650.20x = 4,609,305,016.88
  5. Step 5: Solve for x
    x = 4,609,305,016.88/100,650.20
  6. Step 6: Final answer
    x = 45,795.29

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.