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Finding the Fourth Proportional to 74,195.86, 111,322.26 and 44,634.64

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Solution

The fourth proportional to 74,195.86, 111,322.26 and 44,634.64 is: 66,969.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,195.86 : 111,322.26 = 44,634.64 : x
  2. Step 2: Convert to fraction form
    74,195.86/111,322.26 = 44,634.64/x
  3. Step 3: Cross multiply
    74,195.86x = 111,322.26 × 44,634.64
  4. Step 4: Simplify right side
    74,195.86x = 4,968,828,999.09
  5. Step 5: Solve for x
    x = 4,968,828,999.09/74,195.86
  6. Step 6: Final answer
    x = 66,969.09

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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.