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Finding the Fourth Proportional to 110,379.65, 165,469.64 and 40,242.56

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Solution

The fourth proportional to 110,379.65, 165,469.64 and 40,242.56 is: 60,327.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,379.65 : 165,469.64 = 40,242.56 : x
  2. Step 2: Convert to fraction form
    110,379.65/165,469.64 = 40,242.56/x
  3. Step 3: Cross multiply
    110,379.65x = 165,469.64 × 40,242.56
  4. Step 4: Simplify right side
    110,379.65x = 6,658,920,887.32
  5. Step 5: Solve for x
    x = 6,658,920,887.32/110,379.65
  6. Step 6: Final answer
    x = 60,327.44

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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.