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Finding the Fourth Proportional to 74,899.44, 103,361.22 and 43,074.60

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Solution

The fourth proportional to 74,899.44, 103,361.22 and 43,074.60 is: 59,442.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,899.44 : 103,361.22 = 43,074.60 : x
  2. Step 2: Convert to fraction form
    74,899.44/103,361.22 = 43,074.60/x
  3. Step 3: Cross multiply
    74,899.44x = 103,361.22 × 43,074.60
  4. Step 4: Simplify right side
    74,899.44x = 4,452,243,207.01
  5. Step 5: Solve for x
    x = 4,452,243,207.01/74,899.44
  6. Step 6: Final answer
    x = 59,442.94

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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.