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Finding the Fourth Proportional to 327,035.60, 490,742.58 and 137,480.96

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Solution

The fourth proportional to 327,035.60, 490,742.58 and 137,480.96 is: 206,300.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,035.60 : 490,742.58 = 137,480.96 : x
  2. Step 2: Convert to fraction form
    327,035.60/490,742.58 = 137,480.96/x
  3. Step 3: Cross multiply
    327,035.60x = 490,742.58 × 137,480.96
  4. Step 4: Simplify right side
    327,035.60x = 67,467,761,011.28
  5. Step 5: Solve for x
    x = 67,467,761,011.28/327,035.60
  6. Step 6: Final answer
    x = 206,300.97

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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.