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Finding the Fourth Proportional to 268,960.38, 403,469.68 and 100,561.38

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Solution

The fourth proportional to 268,960.38, 403,469.68 and 100,561.38 is: 150,852.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,960.38 : 403,469.68 = 100,561.38 : x
  2. Step 2: Convert to fraction form
    268,960.38/403,469.68 = 100,561.38/x
  3. Step 3: Cross multiply
    268,960.38x = 403,469.68 × 100,561.38
  4. Step 4: Simplify right side
    268,960.38x = 40,573,467,808.96
  5. Step 5: Solve for x
    x = 40,573,467,808.96/268,960.38
  6. Step 6: Final answer
    x = 150,852.95

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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.