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Finding the Fourth Proportional to 123,396.64, 184,848.28 and 56,745.38

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Solution

The fourth proportional to 123,396.64, 184,848.28 and 56,745.38 is: 85,004.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,396.64 : 184,848.28 = 56,745.38 : x
  2. Step 2: Convert to fraction form
    123,396.64/184,848.28 = 56,745.38/x
  3. Step 3: Cross multiply
    123,396.64x = 184,848.28 × 56,745.38
  4. Step 4: Simplify right side
    123,396.64x = 10,489,285,890.95
  5. Step 5: Solve for x
    x = 10,489,285,890.95/123,396.64
  6. Step 6: Final answer
    x = 85,004.63

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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.