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Finding the Fourth Proportional to 111,623.80, 167,493.11 and 61,694.59

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Solution

The fourth proportional to 111,623.80, 167,493.11 and 61,694.59 is: 92,573.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,623.80 : 167,493.11 = 61,694.59 : x
  2. Step 2: Convert to fraction form
    111,623.80/167,493.11 = 61,694.59/x
  3. Step 3: Cross multiply
    111,623.80x = 167,493.11 × 61,694.59
  4. Step 4: Simplify right side
    111,623.80x = 10,333,418,749.27
  5. Step 5: Solve for x
    x = 10,333,418,749.27/111,623.80
  6. Step 6: Final answer
    x = 92,573.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.