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Finding the Fourth Proportional to 79,093.62, 109,149.18 and 43,283.61

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Solution

The fourth proportional to 79,093.62, 109,149.18 and 43,283.61 is: 59,731.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,093.62 : 109,149.18 = 43,283.61 : x
  2. Step 2: Convert to fraction form
    79,093.62/109,149.18 = 43,283.61/x
  3. Step 3: Cross multiply
    79,093.62x = 109,149.18 × 43,283.61
  4. Step 4: Simplify right side
    79,093.62x = 4,724,370,538.94
  5. Step 5: Solve for x
    x = 4,724,370,538.94/79,093.62
  6. Step 6: Final answer
    x = 59,731.37

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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.