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Finding the Fourth Proportional to 192,771.59, 265,993.06 and 121,100.86

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Solution

The fourth proportional to 192,771.59, 265,993.06 and 121,100.86 is: 167,099.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,771.59 : 265,993.06 = 121,100.86 : x
  2. Step 2: Convert to fraction form
    192,771.59/265,993.06 = 121,100.86/x
  3. Step 3: Cross multiply
    192,771.59x = 265,993.06 × 121,100.86
  4. Step 4: Simplify right side
    192,771.59x = 32,211,986,384.56
  5. Step 5: Solve for x
    x = 32,211,986,384.56/192,771.59
  6. Step 6: Final answer
    x = 167,099.24

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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.