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Finding the Fourth Proportional to 271,679.97, 407,580.39 and 89,319.00

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Solution

The fourth proportional to 271,679.97, 407,580.39 and 89,319.00 is: 133,998.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,679.97 : 407,580.39 = 89,319.00 : x
  2. Step 2: Convert to fraction form
    271,679.97/407,580.39 = 89,319.00/x
  3. Step 3: Cross multiply
    271,679.97x = 407,580.39 × 89,319.00
  4. Step 4: Simplify right side
    271,679.97x = 36,404,674,382.84
  5. Step 5: Solve for x
    x = 36,404,674,382.84/271,679.97
  6. Step 6: Final answer
    x = 133,998.37

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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.