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Finding the Fourth Proportional to 325,517.67, 488,116.73 and 135,921.17

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Solution

The fourth proportional to 325,517.67, 488,116.73 and 135,921.17 is: 203,815.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,517.67 : 488,116.73 = 135,921.17 : x
  2. Step 2: Convert to fraction form
    325,517.67/488,116.73 = 135,921.17/x
  3. Step 3: Cross multiply
    325,517.67x = 488,116.73 × 135,921.17
  4. Step 4: Simplify right side
    325,517.67x = 66,345,398,598.27
  5. Step 5: Solve for x
    x = 66,345,398,598.27/325,517.67
  6. Step 6: Final answer
    x = 203,815.05

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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.