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Finding the Fourth Proportional to 107,892.20, 161,838.30 and 34,010.60

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Solution

The fourth proportional to 107,892.20, 161,838.30 and 34,010.60 is: 51,015.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,892.20 : 161,838.30 = 34,010.60 : x
  2. Step 2: Convert to fraction form
    107,892.20/161,838.30 = 34,010.60/x
  3. Step 3: Cross multiply
    107,892.20x = 161,838.30 × 34,010.60
  4. Step 4: Simplify right side
    107,892.20x = 5,504,217,685.98
  5. Step 5: Solve for x
    x = 5,504,217,685.98/107,892.20
  6. Step 6: Final answer
    x = 51,015.90

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1.5x scale

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.