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Finding the Fourth Proportional to 126,099.62, 174,017.71 and 68,739.41

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Solution

The fourth proportional to 126,099.62, 174,017.71 and 68,739.41 is: 94,860.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,099.62 : 174,017.71 = 68,739.41 : x
  2. Step 2: Convert to fraction form
    126,099.62/174,017.71 = 68,739.41/x
  3. Step 3: Cross multiply
    126,099.62x = 174,017.71 × 68,739.41
  4. Step 4: Simplify right side
    126,099.62x = 11,961,873,673.01
  5. Step 5: Solve for x
    x = 11,961,873,673.01/126,099.62
  6. Step 6: Final answer
    x = 94,860.51

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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.