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Finding the Fourth Proportional to 74,735.63, 103,163.96 and 54,751.24

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Solution

The fourth proportional to 74,735.63, 103,163.96 and 54,751.24 is: 75,577.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,735.63 : 103,163.96 = 54,751.24 : x
  2. Step 2: Convert to fraction form
    74,735.63/103,163.96 = 54,751.24/x
  3. Step 3: Cross multiply
    74,735.63x = 103,163.96 × 54,751.24
  4. Step 4: Simplify right side
    74,735.63x = 5,648,354,999.14
  5. Step 5: Solve for x
    x = 5,648,354,999.14/74,735.63
  6. Step 6: Final answer
    x = 75,577.81

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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.