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Finding the Fourth Proportional to 79,701.63, 109,988.24 and 43,891.56

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Solution

The fourth proportional to 79,701.63, 109,988.24 and 43,891.56 is: 60,570.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,701.63 : 109,988.24 = 43,891.56 : x
  2. Step 2: Convert to fraction form
    79,701.63/109,988.24 = 43,891.56/x
  3. Step 3: Cross multiply
    79,701.63x = 109,988.24 × 43,891.56
  4. Step 4: Simplify right side
    79,701.63x = 4,827,555,435.25
  5. Step 5: Solve for x
    x = 4,827,555,435.25/79,701.63
  6. Step 6: Final answer
    x = 60,570.35

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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.