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Finding the Fourth Proportional to 67,234.30, 100,851.45 and 56,736.70

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Solution

The fourth proportional to 67,234.30, 100,851.45 and 56,736.70 is: 85,105.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,234.30 : 100,851.45 = 56,736.70 : x
  2. Step 2: Convert to fraction form
    67,234.30/100,851.45 = 56,736.70/x
  3. Step 3: Cross multiply
    67,234.30x = 100,851.45 × 56,736.70
  4. Step 4: Simplify right side
    67,234.30x = 5,721,978,463.22
  5. Step 5: Solve for x
    x = 5,721,978,463.22/67,234.30
  6. Step 6: Final answer
    x = 85,105.05

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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.