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Finding the Fourth Proportional to 68,040.30, 93,900.78 and 37,828.02

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Solution

The fourth proportional to 68,040.30, 93,900.78 and 37,828.02 is: 52,205.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,040.30 : 93,900.78 = 37,828.02 : x
  2. Step 2: Convert to fraction form
    68,040.30/93,900.78 = 37,828.02/x
  3. Step 3: Cross multiply
    68,040.30x = 93,900.78 × 37,828.02
  4. Step 4: Simplify right side
    68,040.30x = 3,552,080,583.86
  5. Step 5: Solve for x
    x = 3,552,080,583.86/68,040.30
  6. Step 6: Final answer
    x = 52,205.54

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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.