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Finding the Fourth Proportional to 79,182.92, 109,272.30 and 43,374.44

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Solution

The fourth proportional to 79,182.92, 109,272.30 and 43,374.44 is: 59,856.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,182.92 : 109,272.30 = 43,374.44 : x
  2. Step 2: Convert to fraction form
    79,182.92/109,272.30 = 43,374.44/x
  3. Step 3: Cross multiply
    79,182.92x = 109,272.30 × 43,374.44
  4. Step 4: Simplify right side
    79,182.92x = 4,739,624,820.01
  5. Step 5: Solve for x
    x = 4,739,624,820.01/79,182.92
  6. Step 6: Final answer
    x = 59,856.66

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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.