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Finding the Fourth Proportional to 135,608.40, 203,264.82 and 115,826.94

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Solution

The fourth proportional to 135,608.40, 203,264.82 and 115,826.94 is: 173,614.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,608.40 : 203,264.82 = 115,826.94 : x
  2. Step 2: Convert to fraction form
    135,608.40/203,264.82 = 115,826.94/x
  3. Step 3: Cross multiply
    135,608.40x = 203,264.82 × 115,826.94
  4. Step 4: Simplify right side
    135,608.40x = 23,543,542,110.25
  5. Step 5: Solve for x
    x = 23,543,542,110.25/135,608.40
  6. Step 6: Final answer
    x = 173,614.19

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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.