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Finding the Fourth Proportional to 79,978.58, 110,370.60 and 44,170.10

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Solution

The fourth proportional to 79,978.58, 110,370.60 and 44,170.10 is: 60,954.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,978.58 : 110,370.60 = 44,170.10 : x
  2. Step 2: Convert to fraction form
    79,978.58/110,370.60 = 44,170.10/x
  3. Step 3: Cross multiply
    79,978.58x = 110,370.60 × 44,170.10
  4. Step 4: Simplify right side
    79,978.58x = 4,875,080,439.06
  5. Step 5: Solve for x
    x = 4,875,080,439.06/79,978.58
  6. Step 6: Final answer
    x = 60,954.83

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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.