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Finding the Fourth Proportional to 79,434.65, 109,619.69 and 43,624.67

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Solution

The fourth proportional to 79,434.65, 109,619.69 and 43,624.67 is: 60,201.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,434.65 : 109,619.69 = 43,624.67 : x
  2. Step 2: Convert to fraction form
    79,434.65/109,619.69 = 43,624.67/x
  3. Step 3: Cross multiply
    79,434.65x = 109,619.69 × 43,624.67
  4. Step 4: Simplify right side
    79,434.65x = 4,782,122,362.72
  5. Step 5: Solve for x
    x = 4,782,122,362.72/79,434.65
  6. Step 6: Final answer
    x = 60,201.97

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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.