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Finding the Fourth Proportional to 77,991.77, 107,628.66 and 44,007.46

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Solution

The fourth proportional to 77,991.77, 107,628.66 and 44,007.46 is: 60,730.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,991.77 : 107,628.66 = 44,007.46 : x
  2. Step 2: Convert to fraction form
    77,991.77/107,628.66 = 44,007.46/x
  3. Step 3: Cross multiply
    77,991.77x = 107,628.66 × 44,007.46
  4. Step 4: Simplify right side
    77,991.77x = 4,736,463,680.73
  5. Step 5: Solve for x
    x = 4,736,463,680.73/77,991.77
  6. Step 6: Final answer
    x = 60,730.31

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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.