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Finding the Fourth Proportional to 79,444.53, 109,629.18 and 45,449.37

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Solution

The fourth proportional to 79,444.53, 109,629.18 and 45,449.37 is: 62,717.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,444.53 : 109,629.18 = 45,449.37 : x
  2. Step 2: Convert to fraction form
    79,444.53/109,629.18 = 45,449.37/x
  3. Step 3: Cross multiply
    79,444.53x = 109,629.18 × 45,449.37
  4. Step 4: Simplify right side
    79,444.53x = 4,982,577,164.62
  5. Step 5: Solve for x
    x = 4,982,577,164.62/79,444.53
  6. Step 6: Final answer
    x = 62,717.69

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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.