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Finding the Fourth Proportional to 200,193.42, 300,081.00 and 66,964.12

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Solution

The fourth proportional to 200,193.42, 300,081.00 and 66,964.12 is: 100,376.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,193.42 : 300,081.00 = 66,964.12 : x
  2. Step 2: Convert to fraction form
    200,193.42/300,081.00 = 66,964.12/x
  3. Step 3: Cross multiply
    200,193.42x = 300,081.00 × 66,964.12
  4. Step 4: Simplify right side
    200,193.42x = 20,094,659,594.63
  5. Step 5: Solve for x
    x = 20,094,659,594.63/200,193.42
  6. Step 6: Final answer
    x = 100,376.22

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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.