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Finding the Fourth Proportional to 107,958.60, 161,937.90 and 34,086.60

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Solution

The fourth proportional to 107,958.60, 161,937.90 and 34,086.60 is: 51,129.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,958.60 : 161,937.90 = 34,086.60 : x
  2. Step 2: Convert to fraction form
    107,958.60/161,937.90 = 34,086.60/x
  3. Step 3: Cross multiply
    107,958.60x = 161,937.90 × 34,086.60
  4. Step 4: Simplify right side
    107,958.60x = 5,519,912,422.14
  5. Step 5: Solve for x
    x = 5,519,912,422.14/107,958.60
  6. Step 6: Final answer
    x = 51,129.90

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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.