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Finding the Fourth Proportional to 79,608.80, 109,861.84 and 43,802.14

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Solution

The fourth proportional to 79,608.80, 109,861.84 and 43,802.14 is: 60,447.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,608.80 : 109,861.84 = 43,802.14 : x
  2. Step 2: Convert to fraction form
    79,608.80/109,861.84 = 43,802.14/x
  3. Step 3: Cross multiply
    79,608.80x = 109,861.84 × 43,802.14
  4. Step 4: Simplify right side
    79,608.80x = 4,812,183,696.34
  5. Step 5: Solve for x
    x = 4,812,183,696.34/79,608.80
  6. Step 6: Final answer
    x = 60,447.89

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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.