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Finding the Fourth Proportional to 220,107.44, 330,232.01 and 100,207.28

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Solution

The fourth proportional to 220,107.44, 330,232.01 and 100,207.28 is: 150,343.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,107.44 : 330,232.01 = 100,207.28 : x
  2. Step 2: Convert to fraction form
    220,107.44/330,232.01 = 100,207.28/x
  3. Step 3: Cross multiply
    220,107.44x = 330,232.01 × 100,207.28
  4. Step 4: Simplify right side
    220,107.44x = 33,091,651,815.58
  5. Step 5: Solve for x
    x = 33,091,651,815.58/220,107.44
  6. Step 6: Final answer
    x = 150,343.18

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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.