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Finding the Fourth Proportional to 192,770.13, 265,991.15 and 121,099.41

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Solution

The fourth proportional to 192,770.13, 265,991.15 and 121,099.41 is: 167,097.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,770.13 : 265,991.15 = 121,099.41 : x
  2. Step 2: Convert to fraction form
    192,770.13/265,991.15 = 121,099.41/x
  3. Step 3: Cross multiply
    192,770.13x = 265,991.15 × 121,099.41
  4. Step 4: Simplify right side
    192,770.13x = 32,211,370,724.72
  5. Step 5: Solve for x
    x = 32,211,370,724.72/192,770.13
  6. Step 6: Final answer
    x = 167,097.31

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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.