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Finding the Fourth Proportional to 79,451.44, 109,643.00 and 43,642.06

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Solution

The fourth proportional to 79,451.44, 109,643.00 and 43,642.06 is: 60,226.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,451.44 : 109,643.00 = 43,642.06 : x
  2. Step 2: Convert to fraction form
    79,451.44/109,643.00 = 43,642.06/x
  3. Step 3: Cross multiply
    79,451.44x = 109,643.00 × 43,642.06
  4. Step 4: Simplify right side
    79,451.44x = 4,785,045,892.26
  5. Step 5: Solve for x
    x = 4,785,045,892.26/79,451.44
  6. Step 6: Final answer
    x = 60,226.05

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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.