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Finding the Fourth Proportional to 116,165.63, 160,324.17 and 68,418.56

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Solution

The fourth proportional to 116,165.63, 160,324.17 and 68,418.56 is: 94,426.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,165.63 : 160,324.17 = 68,418.56 : x
  2. Step 2: Convert to fraction form
    116,165.63/160,324.17 = 68,418.56/x
  3. Step 3: Cross multiply
    116,165.63x = 160,324.17 × 68,418.56
  4. Step 4: Simplify right side
    116,165.63x = 10,969,148,844.60
  5. Step 5: Solve for x
    x = 10,969,148,844.60/116,165.63
  6. Step 6: Final answer
    x = 94,426.80

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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.