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Finding the Fourth Proportional to 200,340.09, 300,662.46 and 74,099.75

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Solution

The fourth proportional to 200,340.09, 300,662.46 and 74,099.75 is: 111,205.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,340.09 : 300,662.46 = 74,099.75 : x
  2. Step 2: Convert to fraction form
    200,340.09/300,662.46 = 74,099.75/x
  3. Step 3: Cross multiply
    200,340.09x = 300,662.46 × 74,099.75
  4. Step 4: Simplify right side
    200,340.09x = 22,279,011,617.07
  5. Step 5: Solve for x
    x = 22,279,011,617.07/200,340.09
  6. Step 6: Final answer
    x = 111,205.96

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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.