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Finding the Fourth Proportional to 79,722.69, 110,018.21 and 43,911.96

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Solution

The fourth proportional to 79,722.69, 110,018.21 and 43,911.96 is: 60,599.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,722.69 : 110,018.21 = 43,911.96 : x
  2. Step 2: Convert to fraction form
    79,722.69/110,018.21 = 43,911.96/x
  3. Step 3: Cross multiply
    79,722.69x = 110,018.21 × 43,911.96
  4. Step 4: Simplify right side
    79,722.69x = 4,831,115,017.23
  5. Step 5: Solve for x
    x = 4,831,115,017.23/79,722.69
  6. Step 6: Final answer
    x = 60,599.00

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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.