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Finding the Fourth Proportional to 192,967.76, 266,425.46 and 120,481.01

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Solution

The fourth proportional to 192,967.76, 266,425.46 and 120,481.01 is: 166,344.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,967.76 : 266,425.46 = 120,481.01 : x
  2. Step 2: Convert to fraction form
    192,967.76/266,425.46 = 120,481.01/x
  3. Step 3: Cross multiply
    192,967.76x = 266,425.46 × 120,481.01
  4. Step 4: Simplify right side
    192,967.76x = 32,099,209,477.78
  5. Step 5: Solve for x
    x = 32,099,209,477.78/192,967.76
  6. Step 6: Final answer
    x = 166,344.93

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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.