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Finding the Fourth Proportional to 68,818.80, 94,990.14 and 44,949.18

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Solution

The fourth proportional to 68,818.80, 94,990.14 and 44,949.18 is: 62,043.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,818.80 : 94,990.14 = 44,949.18 : x
  2. Step 2: Convert to fraction form
    68,818.80/94,990.14 = 44,949.18/x
  3. Step 3: Cross multiply
    68,818.80x = 94,990.14 × 44,949.18
  4. Step 4: Simplify right side
    68,818.80x = 4,269,728,901.09
  5. Step 5: Solve for x
    x = 4,269,728,901.09/68,818.80
  6. Step 6: Final answer
    x = 62,043.06

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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.