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Finding the Fourth Proportional to 79,759.68, 110,064.38 and 43,943.91

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Solution

The fourth proportional to 79,759.68, 110,064.38 and 43,943.91 is: 60,640.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,759.68 : 110,064.38 = 43,943.91 : x
  2. Step 2: Convert to fraction form
    79,759.68/110,064.38 = 43,943.91/x
  3. Step 3: Cross multiply
    79,759.68x = 110,064.38 × 43,943.91
  4. Step 4: Simplify right side
    79,759.68x = 4,836,658,989.21
  5. Step 5: Solve for x
    x = 4,836,658,989.21/79,759.68
  6. Step 6: Final answer
    x = 60,640.40

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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.