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Finding the Fourth Proportional to 79,843, 110,184.15 and 48,012.43

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Solution

The fourth proportional to 79,843, 110,184.15 and 48,012.43 is: 66,257.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,843 : 110,184.15 = 48,012.43 : x
  2. Step 2: Convert to fraction form
    79,843/110,184.15 = 48,012.43/x
  3. Step 3: Cross multiply
    79,843x = 110,184.15 × 48,012.43
  4. Step 4: Simplify right side
    79,843x = 5,290,208,788.98
  5. Step 5: Solve for x
    x = 5,290,208,788.98/79,843
  6. Step 6: Final answer
    x = 66,257.64

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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.