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Finding the Fourth Proportional to 75,654.88, 113,449.49 and 25,721.56

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Solution

The fourth proportional to 75,654.88, 113,449.49 and 25,721.56 is: 38,571.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,654.88 : 113,449.49 = 25,721.56 : x
  2. Step 2: Convert to fraction form
    75,654.88/113,449.49 = 25,721.56/x
  3. Step 3: Cross multiply
    75,654.88x = 113,449.49 × 25,721.56
  4. Step 4: Simplify right side
    75,654.88x = 2,918,097,864.00
  5. Step 5: Solve for x
    x = 2,918,097,864.00/75,654.88
  6. Step 6: Final answer
    x = 38,571.18

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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.