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Finding the Fourth Proportional to 127,455.52, 175,868.92 and 73,745.54

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Solution

The fourth proportional to 127,455.52, 175,868.92 and 73,745.54 is: 101,757.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,455.52 : 175,868.92 = 73,745.54 : x
  2. Step 2: Convert to fraction form
    127,455.52/175,868.92 = 73,745.54/x
  3. Step 3: Cross multiply
    127,455.52x = 175,868.92 × 73,745.54
  4. Step 4: Simplify right side
    127,455.52x = 12,969,548,474.62
  5. Step 5: Solve for x
    x = 12,969,548,474.62/127,455.52
  6. Step 6: Final answer
    x = 101,757.45

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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.