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Finding the Fourth Proportional to 259,395.72, 389,268.60 and 101,604.48

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Solution

The fourth proportional to 259,395.72, 389,268.60 and 101,604.48 is: 152,475.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,395.72 : 389,268.60 = 101,604.48 : x
  2. Step 2: Convert to fraction form
    259,395.72/389,268.60 = 101,604.48/x
  3. Step 3: Cross multiply
    259,395.72x = 389,268.60 × 101,604.48
  4. Step 4: Simplify right side
    259,395.72x = 39,551,433,683.33
  5. Step 5: Solve for x
    x = 39,551,433,683.33/259,395.72
  6. Step 6: Final answer
    x = 152,475.27

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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.