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Finding the Fourth Proportional to 79,181.87, 109,265.29 and 43,366.10

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Solution

The fourth proportional to 79,181.87, 109,265.29 and 43,366.10 is: 59,842.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,181.87 : 109,265.29 = 43,366.10 : x
  2. Step 2: Convert to fraction form
    79,181.87/109,265.29 = 43,366.10/x
  3. Step 3: Cross multiply
    79,181.87x = 109,265.29 × 43,366.10
  4. Step 4: Simplify right side
    79,181.87x = 4,738,408,837.93
  5. Step 5: Solve for x
    x = 4,738,408,837.93/79,181.87
  6. Step 6: Final answer
    x = 59,842.10

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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.