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Finding the Fourth Proportional to 100,310.91, 150,360.30 and 37,090.43

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Solution

The fourth proportional to 100,310.91, 150,360.30 and 37,090.43 is: 55,596.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,310.91 : 150,360.30 = 37,090.43 : x
  2. Step 2: Convert to fraction form
    100,310.91/150,360.30 = 37,090.43/x
  3. Step 3: Cross multiply
    100,310.91x = 150,360.30 × 37,090.43
  4. Step 4: Simplify right side
    100,310.91x = 5,576,928,181.93
  5. Step 5: Solve for x
    x = 5,576,928,181.93/100,310.91
  6. Step 6: Final answer
    x = 55,596.43

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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.