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Finding the Fourth Proportional to 113,734.88, 156,872.88 and 98,600.48

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Solution

The fourth proportional to 113,734.88, 156,872.88 and 98,600.48 is: 135,998.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,734.88 : 156,872.88 = 98,600.48 : x
  2. Step 2: Convert to fraction form
    113,734.88/156,872.88 = 98,600.48/x
  3. Step 3: Cross multiply
    113,734.88x = 156,872.88 × 98,600.48
  4. Step 4: Simplify right side
    113,734.88x = 15,467,741,266.98
  5. Step 5: Solve for x
    x = 15,467,741,266.98/113,734.88
  6. Step 6: Final answer
    x = 135,998.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.