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Finding the Fourth Proportional to 73,661.02, 101,647.42 and 43,439.41

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Solution

The fourth proportional to 73,661.02, 101,647.42 and 43,439.41 is: 59,943.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,661.02 : 101,647.42 = 43,439.41 : x
  2. Step 2: Convert to fraction form
    73,661.02/101,647.42 = 43,439.41/x
  3. Step 3: Cross multiply
    73,661.02x = 101,647.42 × 43,439.41
  4. Step 4: Simplify right side
    73,661.02x = 4,415,503,971.28
  5. Step 5: Solve for x
    x = 4,415,503,971.28/73,661.02
  6. Step 6: Final answer
    x = 59,943.56

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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.