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Finding the Fourth Proportional to 104,910.79, 157,390.78 and 41,734.50

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Solution

The fourth proportional to 104,910.79, 157,390.78 and 41,734.50 is: 62,611.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,910.79 : 157,390.78 = 41,734.50 : x
  2. Step 2: Convert to fraction form
    104,910.79/157,390.78 = 41,734.50/x
  3. Step 3: Cross multiply
    104,910.79x = 157,390.78 × 41,734.50
  4. Step 4: Simplify right side
    104,910.79x = 6,568,625,507.91
  5. Step 5: Solve for x
    x = 6,568,625,507.91/104,910.79
  6. Step 6: Final answer
    x = 62,611.53

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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.