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Finding the Fourth Proportional to 77,991.66, 107,634.06 and 44,003.16

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Solution

The fourth proportional to 77,991.66, 107,634.06 and 44,003.16 is: 60,727.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,991.66 : 107,634.06 = 44,003.16 : x
  2. Step 2: Convert to fraction form
    77,991.66/107,634.06 = 44,003.16/x
  3. Step 3: Cross multiply
    77,991.66x = 107,634.06 × 44,003.16
  4. Step 4: Simplify right side
    77,991.66x = 4,736,238,763.63
  5. Step 5: Solve for x
    x = 4,736,238,763.63/77,991.66
  6. Step 6: Final answer
    x = 60,727.50

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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.