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Finding the Fourth Proportional to 79,750.41, 110,055.78 and 43,940.31

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Solution

The fourth proportional to 79,750.41, 110,055.78 and 43,940.31 is: 60,637.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,750.41 : 110,055.78 = 43,940.31 : x
  2. Step 2: Convert to fraction form
    79,750.41/110,055.78 = 43,940.31/x
  3. Step 3: Cross multiply
    79,750.41x = 110,055.78 × 43,940.31
  4. Step 4: Simplify right side
    79,750.41x = 4,835,885,090.49
  5. Step 5: Solve for x
    x = 4,835,885,090.49/79,750.41
  6. Step 6: Final answer
    x = 60,637.75

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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.