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Finding the Fourth Proportional to 107,614.40, 161,443.20 and 32,739.20

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Solution

The fourth proportional to 107,614.40, 161,443.20 and 32,739.20 is: 49,115.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,614.40 : 161,443.20 = 32,739.20 : x
  2. Step 2: Convert to fraction form
    107,614.40/161,443.20 = 32,739.20/x
  3. Step 3: Cross multiply
    107,614.40x = 161,443.20 × 32,739.20
  4. Step 4: Simplify right side
    107,614.40x = 5,285,521,213.44
  5. Step 5: Solve for x
    x = 5,285,521,213.44/107,614.40
  6. Step 6: Final answer
    x = 49,115.37

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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.