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Finding the Fourth Proportional to 78,039.44, 107,694.30 and 44,055.08

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Solution

The fourth proportional to 78,039.44, 107,694.30 and 44,055.08 is: 60,795.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,039.44 : 107,694.30 = 44,055.08 : x
  2. Step 2: Convert to fraction form
    78,039.44/107,694.30 = 44,055.08/x
  3. Step 3: Cross multiply
    78,039.44x = 107,694.30 × 44,055.08
  4. Step 4: Simplify right side
    78,039.44x = 4,744,481,002.04
  5. Step 5: Solve for x
    x = 4,744,481,002.04/78,039.44
  6. Step 6: Final answer
    x = 60,795.94

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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.