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Finding the Fourth Proportional to 252,997.30, 379,561.65 and 75,504.31

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Solution

The fourth proportional to 252,997.30, 379,561.65 and 75,504.31 is: 113,276.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,997.30 : 379,561.65 = 75,504.31 : x
  2. Step 2: Convert to fraction form
    252,997.30/379,561.65 = 75,504.31/x
  3. Step 3: Cross multiply
    252,997.30x = 379,561.65 × 75,504.31
  4. Step 4: Simplify right side
    252,997.30x = 28,658,540,485.71
  5. Step 5: Solve for x
    x = 28,658,540,485.71/252,997.30
  6. Step 6: Final answer
    x = 113,276.07

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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.