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Finding the Fourth Proportional to 68,145.54, 94,040.85 and 37,930.22

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Solution

The fourth proportional to 68,145.54, 94,040.85 and 37,930.22 is: 52,343.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,145.54 : 94,040.85 = 37,930.22 : x
  2. Step 2: Convert to fraction form
    68,145.54/94,040.85 = 37,930.22/x
  3. Step 3: Cross multiply
    68,145.54x = 94,040.85 × 37,930.22
  4. Step 4: Simplify right side
    68,145.54x = 3,566,990,129.49
  5. Step 5: Solve for x
    x = 3,566,990,129.49/68,145.54
  6. Step 6: Final answer
    x = 52,343.71

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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.