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Finding the Fourth Proportional to 192,651.75, 265,859.42 and 107,768.88

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Solution

The fourth proportional to 192,651.75, 265,859.42 and 107,768.88 is: 148,721.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,651.75 : 265,859.42 = 107,768.88 : x
  2. Step 2: Convert to fraction form
    192,651.75/265,859.42 = 107,768.88/x
  3. Step 3: Cross multiply
    192,651.75x = 265,859.42 × 107,768.88
  4. Step 4: Simplify right side
    192,651.75x = 28,651,371,392.01
  5. Step 5: Solve for x
    x = 28,651,371,392.01/192,651.75
  6. Step 6: Final answer
    x = 148,721.05

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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.