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Finding the Fourth Proportional to 79,091, 109,165.02 and 45,576.44

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Solution

The fourth proportional to 79,091, 109,165.02 and 45,576.44 is: 62,906.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,091 : 109,165.02 = 45,576.44 : x
  2. Step 2: Convert to fraction form
    79,091/109,165.02 = 45,576.44/x
  3. Step 3: Cross multiply
    79,091x = 109,165.02 × 45,576.44
  4. Step 4: Simplify right side
    79,091x = 4,975,352,984.13
  5. Step 5: Solve for x
    x = 4,975,352,984.13/79,091
  6. Step 6: Final answer
    x = 62,906.69

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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.