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Finding the Fourth Proportional to 259,892.20, 389,610.53 and 124,889.03

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Solution

The fourth proportional to 259,892.20, 389,610.53 and 124,889.03 is: 187,224.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,892.20 : 389,610.53 = 124,889.03 : x
  2. Step 2: Convert to fraction form
    259,892.20/389,610.53 = 124,889.03/x
  3. Step 3: Cross multiply
    259,892.20x = 389,610.53 × 124,889.03
  4. Step 4: Simplify right side
    259,892.20x = 48,658,081,169.49
  5. Step 5: Solve for x
    x = 48,658,081,169.49/259,892.20
  6. Step 6: Final answer
    x = 187,224.09

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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.