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Finding the Fourth Proportional to 79,697.22, 109,977.80 and 43,880.44

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Solution

The fourth proportional to 79,697.22, 109,977.80 and 43,880.44 is: 60,552.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,697.22 : 109,977.80 = 43,880.44 : x
  2. Step 2: Convert to fraction form
    79,697.22/109,977.80 = 43,880.44/x
  3. Step 3: Cross multiply
    79,697.22x = 109,977.80 × 43,880.44
  4. Step 4: Simplify right side
    79,697.22x = 4,825,874,254.23
  5. Step 5: Solve for x
    x = 4,825,874,254.23/79,697.22
  6. Step 6: Final answer
    x = 60,552.60

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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.