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Finding the Fourth Proportional to 192,463.32, 288,623.16 and 66,067.74

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Solution

The fourth proportional to 192,463.32, 288,623.16 and 66,067.74 is: 99,076.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,463.32 : 288,623.16 = 66,067.74 : x
  2. Step 2: Convert to fraction form
    192,463.32/288,623.16 = 66,067.74/x
  3. Step 3: Cross multiply
    192,463.32x = 288,623.16 × 66,067.74
  4. Step 4: Simplify right side
    192,463.32x = 19,068,679,892.86
  5. Step 5: Solve for x
    x = 19,068,679,892.86/192,463.32
  6. Step 6: Final answer
    x = 99,076.96

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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.