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Finding the Fourth Proportional to 79,601.01, 109,846.68 and 43,790.70

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Solution

The fourth proportional to 79,601.01, 109,846.68 and 43,790.70 is: 60,429.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,601.01 : 109,846.68 = 43,790.70 : x
  2. Step 2: Convert to fraction form
    79,601.01/109,846.68 = 43,790.70/x
  3. Step 3: Cross multiply
    79,601.01x = 109,846.68 × 43,790.70
  4. Step 4: Simplify right side
    79,601.01x = 4,810,263,009.88
  5. Step 5: Solve for x
    x = 4,810,263,009.88/79,601.01
  6. Step 6: Final answer
    x = 60,429.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.