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Finding the Fourth Proportional to 79,183, 109,272.57 and 43,374.30

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Solution

The fourth proportional to 79,183, 109,272.57 and 43,374.30 is: 59,856.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,183 : 109,272.57 = 43,374.30 : x
  2. Step 2: Convert to fraction form
    79,183/109,272.57 = 43,374.30/x
  3. Step 3: Cross multiply
    79,183x = 109,272.57 × 43,374.30
  4. Step 4: Simplify right side
    79,183x = 4,739,621,232.95
  5. Step 5: Solve for x
    x = 4,739,621,232.95/79,183
  6. Step 6: Final answer
    x = 59,856.55

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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.