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Finding the Fourth Proportional to 115,266.78, 159,081.03 and 67,560.48

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Solution

The fourth proportional to 115,266.78, 159,081.03 and 67,560.48 is: 93,241.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,266.78 : 159,081.03 = 67,560.48 : x
  2. Step 2: Convert to fraction form
    115,266.78/159,081.03 = 67,560.48/x
  3. Step 3: Cross multiply
    115,266.78x = 159,081.03 × 67,560.48
  4. Step 4: Simplify right side
    115,266.78x = 10,747,590,745.69
  5. Step 5: Solve for x
    x = 10,747,590,745.69/115,266.78
  6. Step 6: Final answer
    x = 93,241.01

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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.