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Finding the Fourth Proportional to 85,331.37, 127,998.90 and 26,165.73

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Solution

The fourth proportional to 85,331.37, 127,998.90 and 26,165.73 is: 39,249.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,331.37 : 127,998.90 = 26,165.73 : x
  2. Step 2: Convert to fraction form
    85,331.37/127,998.90 = 26,165.73/x
  3. Step 3: Cross multiply
    85,331.37x = 127,998.90 × 26,165.73
  4. Step 4: Simplify right side
    85,331.37x = 3,349,184,657.70
  5. Step 5: Solve for x
    x = 3,349,184,657.70/85,331.37
  6. Step 6: Final answer
    x = 39,249.16

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.