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Finding the Fourth Proportional to 74,396.59, 111,622.56 and 34,434.97

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Solution

The fourth proportional to 74,396.59, 111,622.56 and 34,434.97 is: 51,665.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,396.59 : 111,622.56 = 34,434.97 : x
  2. Step 2: Convert to fraction form
    74,396.59/111,622.56 = 34,434.97/x
  3. Step 3: Cross multiply
    74,396.59x = 111,622.56 × 34,434.97
  4. Step 4: Simplify right side
    74,396.59x = 3,843,719,504.92
  5. Step 5: Solve for x
    x = 3,843,719,504.92/74,396.59
  6. Step 6: Final answer
    x = 51,665.26

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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.