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Finding the Fourth Proportional to 78,806.93, 108,753.03 and 44,815.43

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Solution

The fourth proportional to 78,806.93, 108,753.03 and 44,815.43 is: 61,844.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,806.93 : 108,753.03 = 44,815.43 : x
  2. Step 2: Convert to fraction form
    78,806.93/108,753.03 = 44,815.43/x
  3. Step 3: Cross multiply
    78,806.93x = 108,753.03 × 44,815.43
  4. Step 4: Simplify right side
    78,806.93x = 4,873,813,259.49
  5. Step 5: Solve for x
    x = 4,873,813,259.49/78,806.93
  6. Step 6: Final answer
    x = 61,844.99

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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.