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Finding the Fourth Proportional to 263,548.51, 395,485.43 and 103,596.46

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Solution

The fourth proportional to 263,548.51, 395,485.43 and 103,596.46 is: 155,458.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,548.51 : 395,485.43 = 103,596.46 : x
  2. Step 2: Convert to fraction form
    263,548.51/395,485.43 = 103,596.46/x
  3. Step 3: Cross multiply
    263,548.51x = 395,485.43 × 103,596.46
  4. Step 4: Simplify right side
    263,548.51x = 40,970,889,022.88
  5. Step 5: Solve for x
    x = 40,970,889,022.88/263,548.51
  6. Step 6: Final answer
    x = 155,458.63

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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.