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Finding the Fourth Proportional to 192,771.63, 265,993.22 and 121,100.91

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Solution

The fourth proportional to 192,771.63, 265,993.22 and 121,100.91 is: 167,099.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,771.63 : 265,993.22 = 121,100.91 : x
  2. Step 2: Convert to fraction form
    192,771.63/265,993.22 = 121,100.91/x
  3. Step 3: Cross multiply
    192,771.63x = 265,993.22 × 121,100.91
  4. Step 4: Simplify right side
    192,771.63x = 32,212,020,390.33
  5. Step 5: Solve for x
    x = 32,212,020,390.33/192,771.63
  6. Step 6: Final answer
    x = 167,099.38

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1.5x scale

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.