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Finding the Fourth Proportional to 74,951, 103,432.38 and 41,422.04

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Solution

The fourth proportional to 74,951, 103,432.38 and 41,422.04 is: 57,162.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,951 : 103,432.38 = 41,422.04 : x
  2. Step 2: Convert to fraction form
    74,951/103,432.38 = 41,422.04/x
  3. Step 3: Cross multiply
    74,951x = 103,432.38 × 41,422.04
  4. Step 4: Simplify right side
    74,951x = 4,284,380,181.66
  5. Step 5: Solve for x
    x = 4,284,380,181.66/74,951
  6. Step 6: Final answer
    x = 57,162.42

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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.