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Finding the Fourth Proportional to 68,040.93, 93,908.11 and 43,835.09

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Solution

The fourth proportional to 68,040.93, 93,908.11 and 43,835.09 is: 60,499.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,040.93 : 93,908.11 = 43,835.09 : x
  2. Step 2: Convert to fraction form
    68,040.93/93,908.11 = 43,835.09/x
  3. Step 3: Cross multiply
    68,040.93x = 93,908.11 × 43,835.09
  4. Step 4: Simplify right side
    68,040.93x = 4,116,470,453.58
  5. Step 5: Solve for x
    x = 4,116,470,453.58/68,040.93
  6. Step 6: Final answer
    x = 60,499.91

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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.