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Finding the Fourth Proportional to 263,494.56, 395,261.88 and 103,493.28

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Solution

The fourth proportional to 263,494.56, 395,261.88 and 103,493.28 is: 155,247.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,494.56 : 395,261.88 = 103,493.28 : x
  2. Step 2: Convert to fraction form
    263,494.56/395,261.88 = 103,493.28/x
  3. Step 3: Cross multiply
    263,494.56x = 395,261.88 × 103,493.28
  4. Step 4: Simplify right side
    263,494.56x = 40,906,948,420.17
  5. Step 5: Solve for x
    x = 40,906,948,420.17/263,494.56
  6. Step 6: Final answer
    x = 155,247.79

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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.