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Finding the Fourth Proportional to 68,956.20, 103,434.30 and 33,964.20

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Solution

The fourth proportional to 68,956.20, 103,434.30 and 33,964.20 is: 50,946.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,956.20 : 103,434.30 = 33,964.20 : x
  2. Step 2: Convert to fraction form
    68,956.20/103,434.30 = 33,964.20/x
  3. Step 3: Cross multiply
    68,956.20x = 103,434.30 × 33,964.20
  4. Step 4: Simplify right side
    68,956.20x = 3,513,063,252.06
  5. Step 5: Solve for x
    x = 3,513,063,252.06/68,956.20
  6. Step 6: Final answer
    x = 50,946.30

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Similar ratio
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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.