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Finding the Fourth Proportional to 68,040.54, 93,897.87 and 41,187.90

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Solution

The fourth proportional to 68,040.54, 93,897.87 and 41,187.90 is: 56,840.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,040.54 : 93,897.87 = 41,187.90 : x
  2. Step 2: Convert to fraction form
    68,040.54/93,897.87 = 41,187.90/x
  3. Step 3: Cross multiply
    68,040.54x = 93,897.87 × 41,187.90
  4. Step 4: Simplify right side
    68,040.54x = 3,867,456,079.77
  5. Step 5: Solve for x
    x = 3,867,456,079.77/68,040.54
  6. Step 6: Final answer
    x = 56,840.47

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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.