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Finding the Fourth Proportional to 68,279.70, 94,172.56 and 44,413.99

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Solution

The fourth proportional to 68,279.70, 94,172.56 and 44,413.99 is: 61,256.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,279.70 : 94,172.56 = 44,413.99 : x
  2. Step 2: Convert to fraction form
    68,279.70/94,172.56 = 44,413.99/x
  3. Step 3: Cross multiply
    68,279.70x = 94,172.56 × 44,413.99
  4. Step 4: Simplify right side
    68,279.70x = 4,182,579,138.11
  5. Step 5: Solve for x
    x = 4,182,579,138.11/68,279.70
  6. Step 6: Final answer
    x = 61,256.55

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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.