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Finding the Fourth Proportional to 140,697.50, 211,098.09 and 74,134.94

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Solution

The fourth proportional to 140,697.50, 211,098.09 and 74,134.94 is: 111,229.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,697.50 : 211,098.09 = 74,134.94 : x
  2. Step 2: Convert to fraction form
    140,697.50/211,098.09 = 74,134.94/x
  3. Step 3: Cross multiply
    140,697.50x = 211,098.09 × 74,134.94
  4. Step 4: Simplify right side
    140,697.50x = 15,649,744,236.26
  5. Step 5: Solve for x
    x = 15,649,744,236.26/140,697.50
  6. Step 6: Final answer
    x = 111,229.73

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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.