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Finding the Fourth Proportional to 270,080.72, 372,718.91 and 149,229.80

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Solution

The fourth proportional to 270,080.72, 372,718.91 and 149,229.80 is: 205,941.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,080.72 : 372,718.91 = 149,229.80 : x
  2. Step 2: Convert to fraction form
    270,080.72/372,718.91 = 149,229.80/x
  3. Step 3: Cross multiply
    270,080.72x = 372,718.91 × 149,229.80
  4. Step 4: Simplify right side
    270,080.72x = 55,620,766,905.00
  5. Step 5: Solve for x
    x = 55,620,766,905.00/270,080.72
  6. Step 6: Final answer
    x = 205,941.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.