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Finding the Fourth Proportional to 192,414.28, 288,664.02 and 66,051.70

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Solution

The fourth proportional to 192,414.28, 288,664.02 and 66,051.70 is: 99,092.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,414.28 : 288,664.02 = 66,051.70 : x
  2. Step 2: Convert to fraction form
    192,414.28/288,664.02 = 66,051.70/x
  3. Step 3: Cross multiply
    192,414.28x = 288,664.02 × 66,051.70
  4. Step 4: Simplify right side
    192,414.28x = 19,066,749,249.83
  5. Step 5: Solve for x
    x = 19,066,749,249.83/192,414.28
  6. Step 6: Final answer
    x = 99,092.17

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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.