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Finding the Fourth Proportional to 79,508.99, 109,724.72 and 43,701.32

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Solution

The fourth proportional to 79,508.99, 109,724.72 and 43,701.32 is: 60,309.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,508.99 : 109,724.72 = 43,701.32 : x
  2. Step 2: Convert to fraction form
    79,508.99/109,724.72 = 43,701.32/x
  3. Step 3: Cross multiply
    79,508.99x = 109,724.72 × 43,701.32
  4. Step 4: Simplify right side
    79,508.99x = 4,795,115,156.44
  5. Step 5: Solve for x
    x = 4,795,115,156.44/79,508.99
  6. Step 6: Final answer
    x = 60,309.09

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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.