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Finding the Fourth Proportional to 111,757.95, 154,227.15 and 60,770.79

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Solution

The fourth proportional to 111,757.95, 154,227.15 and 60,770.79 is: 83,864.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,757.95 : 154,227.15 = 60,770.79 : x
  2. Step 2: Convert to fraction form
    111,757.95/154,227.15 = 60,770.79/x
  3. Step 3: Cross multiply
    111,757.95x = 154,227.15 × 60,770.79
  4. Step 4: Simplify right side
    111,757.95x = 9,372,505,744.95
  5. Step 5: Solve for x
    x = 9,372,505,744.95/111,757.95
  6. Step 6: Final answer
    x = 83,864.33

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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.