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Finding the Fourth Proportional to 67,174.62, 100,839.69 and 36,070.62

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Solution

The fourth proportional to 67,174.62, 100,839.69 and 36,070.62 is: 54,147.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,174.62 : 100,839.69 = 36,070.62 : x
  2. Step 2: Convert to fraction form
    67,174.62/100,839.69 = 36,070.62/x
  3. Step 3: Cross multiply
    67,174.62x = 100,839.69 × 36,070.62
  4. Step 4: Simplify right side
    67,174.62x = 3,637,350,138.91
  5. Step 5: Solve for x
    x = 3,637,350,138.91/67,174.62
  6. Step 6: Final answer
    x = 54,147.68

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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.