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Finding the Fourth Proportional to 117,553.27, 176,359.73 and 54,418.94

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Solution

The fourth proportional to 117,553.27, 176,359.73 and 54,418.94 is: 81,642.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,553.27 : 176,359.73 = 54,418.94 : x
  2. Step 2: Convert to fraction form
    117,553.27/176,359.73 = 54,418.94/x
  3. Step 3: Cross multiply
    117,553.27x = 176,359.73 × 54,418.94
  4. Step 4: Simplify right side
    117,553.27x = 9,597,309,565.29
  5. Step 5: Solve for x
    x = 9,597,309,565.29/117,553.27
  6. Step 6: Final answer
    x = 81,642.22

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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.