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Finding the Fourth Proportional to 192,889.87, 266,144.97 and 116,421.37

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Solution

The fourth proportional to 192,889.87, 266,144.97 and 116,421.37 is: 160,635.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,889.87 : 266,144.97 = 116,421.37 : x
  2. Step 2: Convert to fraction form
    192,889.87/266,144.97 = 116,421.37/x
  3. Step 3: Cross multiply
    192,889.87x = 266,144.97 × 116,421.37
  4. Step 4: Simplify right side
    192,889.87x = 30,984,962,026.01
  5. Step 5: Solve for x
    x = 30,984,962,026.01/192,889.87
  6. Step 6: Final answer
    x = 160,635.51

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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.