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Finding the Fourth Proportional to 121,321.31, 181,975.34 and 37,081.44

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Solution

The fourth proportional to 121,321.31, 181,975.34 and 37,081.44 is: 55,620.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,321.31 : 181,975.34 = 37,081.44 : x
  2. Step 2: Convert to fraction form
    121,321.31/181,975.34 = 37,081.44/x
  3. Step 3: Cross multiply
    121,321.31x = 181,975.34 × 37,081.44
  4. Step 4: Simplify right side
    121,321.31x = 6,747,907,466.28
  5. Step 5: Solve for x
    x = 6,747,907,466.28/121,321.31
  6. Step 6: Final answer
    x = 55,620.14

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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.