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Finding the Fourth Proportional to 100,611.76, 150,947.82 and 40,609.37

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Solution

The fourth proportional to 100,611.76, 150,947.82 and 40,609.37 is: 60,926.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,611.76 : 150,947.82 = 40,609.37 : x
  2. Step 2: Convert to fraction form
    100,611.76/150,947.82 = 40,609.37/x
  3. Step 3: Cross multiply
    100,611.76x = 150,947.82 × 40,609.37
  4. Step 4: Simplify right side
    100,611.76x = 6,129,895,118.33
  5. Step 5: Solve for x
    x = 6,129,895,118.33/100,611.76
  6. Step 6: Final answer
    x = 60,926.23

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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.