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Finding the Fourth Proportional to 133,690.60, 200,535.90 and 107,446.60

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Solution

The fourth proportional to 133,690.60, 200,535.90 and 107,446.60 is: 161,169.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,690.60 : 200,535.90 = 107,446.60 : x
  2. Step 2: Convert to fraction form
    133,690.60/200,535.90 = 107,446.60/x
  3. Step 3: Cross multiply
    133,690.60x = 200,535.90 × 107,446.60
  4. Step 4: Simplify right side
    133,690.60x = 21,546,900,632.94
  5. Step 5: Solve for x
    x = 21,546,900,632.94/133,690.60
  6. Step 6: Final answer
    x = 161,169.90

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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.