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Finding the Fourth Proportional to 200,616.76, 300,940.98 and 67,495.96

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Solution

The fourth proportional to 200,616.76, 300,940.98 and 67,495.96 is: 101,249.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,616.76 : 300,940.98 = 67,495.96 : x
  2. Step 2: Convert to fraction form
    200,616.76/300,940.98 = 67,495.96/x
  3. Step 3: Cross multiply
    200,616.76x = 300,940.98 × 67,495.96
  4. Step 4: Simplify right side
    200,616.76x = 20,312,300,348.44
  5. Step 5: Solve for x
    x = 20,312,300,348.44/200,616.76
  6. Step 6: Final answer
    x = 101,249.27

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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.