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Finding the Fourth Proportional to 74,265, 111,414.78 and 25,017

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Solution

The fourth proportional to 74,265, 111,414.78 and 25,017 is: 37,531.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,265 : 111,414.78 = 25,017 : x
  2. Step 2: Convert to fraction form
    74,265/111,414.78 = 25,017/x
  3. Step 3: Cross multiply
    74,265x = 111,414.78 × 25,017
  4. Step 4: Simplify right side
    74,265x = 2,787,263,551.26
  5. Step 5: Solve for x
    x = 2,787,263,551.26/74,265
  6. Step 6: Final answer
    x = 37,531.32

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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.