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Finding the Fourth Proportional to 61,188.06, 91,745.12 and 27,447.90

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Solution

The fourth proportional to 61,188.06, 91,745.12 and 27,447.90 is: 41,155.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,188.06 : 91,745.12 = 27,447.90 : x
  2. Step 2: Convert to fraction form
    61,188.06/91,745.12 = 27,447.90/x
  3. Step 3: Cross multiply
    61,188.06x = 91,745.12 × 27,447.90
  4. Step 4: Simplify right side
    61,188.06x = 2,518,210,879.25
  5. Step 5: Solve for x
    x = 2,518,210,879.25/61,188.06
  6. Step 6: Final answer
    x = 41,155.27

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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.