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Finding the Fourth Proportional to 116,793.28, 161,174.88 and 66,492.28

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Solution

The fourth proportional to 116,793.28, 161,174.88 and 66,492.28 is: 91,759.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,793.28 : 161,174.88 = 66,492.28 : x
  2. Step 2: Convert to fraction form
    116,793.28/161,174.88 = 66,492.28/x
  3. Step 3: Cross multiply
    116,793.28x = 161,174.88 × 66,492.28
  4. Step 4: Simplify right side
    116,793.28x = 10,716,885,249.93
  5. Step 5: Solve for x
    x = 10,716,885,249.93/116,793.28
  6. Step 6: Final answer
    x = 91,759.43

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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.