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Finding the Fourth Proportional to 192,770.85, 265,992.02 and 121,100.11

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Solution

The fourth proportional to 192,770.85, 265,992.02 and 121,100.11 is: 167,098.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,770.85 : 265,992.02 = 121,100.11 : x
  2. Step 2: Convert to fraction form
    192,770.85/265,992.02 = 121,100.11/x
  3. Step 3: Cross multiply
    192,770.85x = 265,992.02 × 121,100.11
  4. Step 4: Simplify right side
    192,770.85x = 32,211,662,881.12
  5. Step 5: Solve for x
    x = 32,211,662,881.12/192,770.85
  6. Step 6: Final answer
    x = 167,098.20

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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.