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Finding the Fourth Proportional to 192,738.98, 289,127.82 and 66,362.50

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Solution

The fourth proportional to 192,738.98, 289,127.82 and 66,362.50 is: 99,550.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,738.98 : 289,127.82 = 66,362.50 : x
  2. Step 2: Convert to fraction form
    192,738.98/289,127.82 = 66,362.50/x
  3. Step 3: Cross multiply
    192,738.98x = 289,127.82 × 66,362.50
  4. Step 4: Simplify right side
    192,738.98x = 19,187,244,954.75
  5. Step 5: Solve for x
    x = 19,187,244,954.75/192,738.98
  6. Step 6: Final answer
    x = 99,550.41

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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.