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Finding the Fourth Proportional to 192,249.30, 288,287.55 and 73,881.30

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Solution

The fourth proportional to 192,249.30, 288,287.55 and 73,881.30 is: 110,788.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,249.30 : 288,287.55 = 73,881.30 : x
  2. Step 2: Convert to fraction form
    192,249.30/288,287.55 = 73,881.30/x
  3. Step 3: Cross multiply
    192,249.30x = 288,287.55 × 73,881.30
  4. Step 4: Simplify right side
    192,249.30x = 21,299,058,967.82
  5. Step 5: Solve for x
    x = 21,299,058,967.82/192,249.30
  6. Step 6: Final answer
    x = 110,788.75

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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.