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Finding the Fourth Proportional to 103,797.38, 155,745.28 and 61,760.54

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Solution

The fourth proportional to 103,797.38, 155,745.28 and 61,760.54 is: 92,670.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,797.38 : 155,745.28 = 61,760.54 : x
  2. Step 2: Convert to fraction form
    103,797.38/155,745.28 = 61,760.54/x
  3. Step 3: Cross multiply
    103,797.38x = 155,745.28 × 61,760.54
  4. Step 4: Simplify right side
    103,797.38x = 9,618,912,595.25
  5. Step 5: Solve for x
    x = 9,618,912,595.25/103,797.38
  6. Step 6: Final answer
    x = 92,670.09

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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.