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Finding the Fourth Proportional to 79,661.18, 109,932.39 and 43,851

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Solution

The fourth proportional to 79,661.18, 109,932.39 and 43,851 is: 60,514.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,661.18 : 109,932.39 = 43,851 : x
  2. Step 2: Convert to fraction form
    79,661.18/109,932.39 = 43,851/x
  3. Step 3: Cross multiply
    79,661.18x = 109,932.39 × 43,851
  4. Step 4: Simplify right side
    79,661.18x = 4,820,645,233.89
  5. Step 5: Solve for x
    x = 4,820,645,233.89/79,661.18
  6. Step 6: Final answer
    x = 60,514.36

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.