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Finding the Fourth Proportional to 181,965.22, 273,101.19 and 76,859.62

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Solution

The fourth proportional to 181,965.22, 273,101.19 and 76,859.62 is: 115,354.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,965.22 : 273,101.19 = 76,859.62 : x
  2. Step 2: Convert to fraction form
    181,965.22/273,101.19 = 76,859.62/x
  3. Step 3: Cross multiply
    181,965.22x = 273,101.19 × 76,859.62
  4. Step 4: Simplify right side
    181,965.22x = 20,990,453,684.95
  5. Step 5: Solve for x
    x = 20,990,453,684.95/181,965.22
  6. Step 6: Final answer
    x = 115,354.21

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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.