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Finding the Fourth Proportional to 90,546.81, 135,846.14 and 43,826.01

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Solution

The fourth proportional to 90,546.81, 135,846.14 and 43,826.01 is: 65,751.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,546.81 : 135,846.14 = 43,826.01 : x
  2. Step 2: Convert to fraction form
    90,546.81/135,846.14 = 43,826.01/x
  3. Step 3: Cross multiply
    90,546.81x = 135,846.14 × 43,826.01
  4. Step 4: Simplify right side
    90,546.81x = 5,953,594,070.97
  5. Step 5: Solve for x
    x = 5,953,594,070.97/90,546.81
  6. Step 6: Final answer
    x = 65,751.56

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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.