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Finding the Fourth Proportional to 137,847.50, 206,587.29 and 73,674.09

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Solution

The fourth proportional to 137,847.50, 206,587.29 and 73,674.09 is: 110,412.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,847.50 : 206,587.29 = 73,674.09 : x
  2. Step 2: Convert to fraction form
    137,847.50/206,587.29 = 73,674.09/x
  3. Step 3: Cross multiply
    137,847.50x = 206,587.29 × 73,674.09
  4. Step 4: Simplify right side
    137,847.50x = 15,220,129,815.20
  5. Step 5: Solve for x
    x = 15,220,129,815.20/137,847.50
  6. Step 6: Final answer
    x = 110,412.81

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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.