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Finding the Fourth Proportional to 322,694.86, 484,072.64 and 94,990.63

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Solution

The fourth proportional to 322,694.86, 484,072.64 and 94,990.63 is: 142,494.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,694.86 : 484,072.64 = 94,990.63 : x
  2. Step 2: Convert to fraction form
    322,694.86/484,072.64 = 94,990.63/x
  3. Step 3: Cross multiply
    322,694.86x = 484,072.64 × 94,990.63
  4. Step 4: Simplify right side
    322,694.86x = 45,982,365,039.36
  5. Step 5: Solve for x
    x = 45,982,365,039.36/322,694.86
  6. Step 6: Final answer
    x = 142,494.88

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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.