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Finding the Fourth Proportional to 68,723.70, 103,085.55 and 33,731.70

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Solution

The fourth proportional to 68,723.70, 103,085.55 and 33,731.70 is: 50,597.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,723.70 : 103,085.55 = 33,731.70 : x
  2. Step 2: Convert to fraction form
    68,723.70/103,085.55 = 33,731.70/x
  3. Step 3: Cross multiply
    68,723.70x = 103,085.55 × 33,731.70
  4. Step 4: Simplify right side
    68,723.70x = 3,477,250,846.94
  5. Step 5: Solve for x
    x = 3,477,250,846.94/68,723.70
  6. Step 6: Final answer
    x = 50,597.55

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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.