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Finding the Fourth Proportional to 80,057.69, 110,493.05 and 54,204.51

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Solution

The fourth proportional to 80,057.69, 110,493.05 and 54,204.51 is: 74,811.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,057.69 : 110,493.05 = 54,204.51 : x
  2. Step 2: Convert to fraction form
    80,057.69/110,493.05 = 54,204.51/x
  3. Step 3: Cross multiply
    80,057.69x = 110,493.05 × 54,204.51
  4. Step 4: Simplify right side
    80,057.69x = 5,989,221,633.66
  5. Step 5: Solve for x
    x = 5,989,221,633.66/80,057.69
  6. Step 6: Final answer
    x = 74,811.32

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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.