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Finding the Fourth Proportional to 127,455.49, 175,868.87 and 73,745.52

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Solution

The fourth proportional to 127,455.49, 175,868.87 and 73,745.52 is: 101,757.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,455.49 : 175,868.87 = 73,745.52 : x
  2. Step 2: Convert to fraction form
    127,455.49/175,868.87 = 73,745.52/x
  3. Step 3: Cross multiply
    127,455.49x = 175,868.87 × 73,745.52
  4. Step 4: Simplify right side
    127,455.49x = 12,969,540,241.73
  5. Step 5: Solve for x
    x = 12,969,540,241.73/127,455.49
  6. Step 6: Final answer
    x = 101,757.41

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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.