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Finding the Fourth Proportional to 54,386.56, 81,546.56 and 49,745.68

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Solution

The fourth proportional to 54,386.56, 81,546.56 and 49,745.68 is: 74,588.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,386.56 : 81,546.56 = 49,745.68 : x
  2. Step 2: Convert to fraction form
    54,386.56/81,546.56 = 49,745.68/x
  3. Step 3: Cross multiply
    54,386.56x = 81,546.56 × 49,745.68
  4. Step 4: Simplify right side
    54,386.56x = 4,056,589,078.86
  5. Step 5: Solve for x
    x = 4,056,589,078.86/54,386.56
  6. Step 6: Final answer
    x = 74,588.08

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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.