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Finding the Fourth Proportional to 79,433.75, 109,619.33 and 43,624.50

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Solution

The fourth proportional to 79,433.75, 109,619.33 and 43,624.50 is: 60,202.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,433.75 : 109,619.33 = 43,624.50 : x
  2. Step 2: Convert to fraction form
    79,433.75/109,619.33 = 43,624.50/x
  3. Step 3: Cross multiply
    79,433.75x = 109,619.33 × 43,624.50
  4. Step 4: Simplify right side
    79,433.75x = 4,782,088,461.59
  5. Step 5: Solve for x
    x = 4,782,088,461.59/79,433.75
  6. Step 6: Final answer
    x = 60,202.22

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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.