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Finding the Fourth Proportional to 79,474.73, 109,685.63 and 51,262.43

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Solution

The fourth proportional to 79,474.73, 109,685.63 and 51,262.43 is: 70,748.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,474.73 : 109,685.63 = 51,262.43 : x
  2. Step 2: Convert to fraction form
    79,474.73/109,685.63 = 51,262.43/x
  3. Step 3: Cross multiply
    79,474.73x = 109,685.63 × 51,262.43
  4. Step 4: Simplify right side
    79,474.73x = 5,622,751,673.57
  5. Step 5: Solve for x
    x = 5,622,751,673.57/79,474.73
  6. Step 6: Final answer
    x = 70,748.92

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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.