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Finding the Fourth Proportional to 116,832, 161,201.76 and 69,087.36

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Solution

The fourth proportional to 116,832, 161,201.76 and 69,087.36 is: 95,324.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,832 : 161,201.76 = 69,087.36 : x
  2. Step 2: Convert to fraction form
    116,832/161,201.76 = 69,087.36/x
  3. Step 3: Cross multiply
    116,832x = 161,201.76 × 69,087.36
  4. Step 4: Simplify right side
    116,832x = 11,137,004,025.75
  5. Step 5: Solve for x
    x = 11,137,004,025.75/116,832
  6. Step 6: Final answer
    x = 95,324.95

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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.