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Finding the Fourth Proportional to 325,944.58, 489,056.31 and 136,449.22

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Solution

The fourth proportional to 325,944.58, 489,056.31 and 136,449.22 is: 204,732.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,944.58 : 489,056.31 = 136,449.22 : x
  2. Step 2: Convert to fraction form
    325,944.58/489,056.31 = 136,449.22/x
  3. Step 3: Cross multiply
    325,944.58x = 489,056.31 × 136,449.22
  4. Step 4: Simplify right side
    325,944.58x = 66,731,352,035.58
  5. Step 5: Solve for x
    x = 66,731,352,035.58/325,944.58
  6. Step 6: Final answer
    x = 204,732.20

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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.