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Finding the Fourth Proportional to 123,793.50, 170,837.10 and 67,204.89

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Solution

The fourth proportional to 123,793.50, 170,837.10 and 67,204.89 is: 92,743.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,793.50 : 170,837.10 = 67,204.89 : x
  2. Step 2: Convert to fraction form
    123,793.50/170,837.10 = 67,204.89/x
  3. Step 3: Cross multiply
    123,793.50x = 170,837.10 × 67,204.89
  4. Step 4: Simplify right side
    123,793.50x = 11,481,088,513.42
  5. Step 5: Solve for x
    x = 11,481,088,513.42/123,793.50
  6. Step 6: Final answer
    x = 92,743.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.