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Finding the Fourth Proportional to 192,770.34, 265,991.33 and 121,099.61

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Solution

The fourth proportional to 192,770.34, 265,991.33 and 121,099.61 is: 167,097.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,770.34 : 265,991.33 = 121,099.61 : x
  2. Step 2: Convert to fraction form
    192,770.34/265,991.33 = 121,099.61/x
  3. Step 3: Cross multiply
    192,770.34x = 265,991.33 × 121,099.61
  4. Step 4: Simplify right side
    192,770.34x = 32,211,445,299.17
  5. Step 5: Solve for x
    x = 32,211,445,299.17/192,770.34
  6. Step 6: Final answer
    x = 167,097.52

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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.