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Finding the Fourth Proportional to 116,793, 161,174.52 and 66,492

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Solution

The fourth proportional to 116,793, 161,174.52 and 66,492 is: 91,759.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,793 : 161,174.52 = 66,492 : x
  2. Step 2: Convert to fraction form
    116,793/161,174.52 = 66,492/x
  3. Step 3: Cross multiply
    116,793x = 161,174.52 × 66,492
  4. Step 4: Simplify right side
    116,793x = 10,716,816,183.84
  5. Step 5: Solve for x
    x = 10,716,816,183.84/116,793
  6. Step 6: Final answer
    x = 91,759.06

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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.