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Finding the Fourth Proportional to 68,031.44, 93,884.50 and 37,405.82

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Solution

The fourth proportional to 68,031.44, 93,884.50 and 37,405.82 is: 51,620.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,031.44 : 93,884.50 = 37,405.82 : x
  2. Step 2: Convert to fraction form
    68,031.44/93,884.50 = 37,405.82/x
  3. Step 3: Cross multiply
    68,031.44x = 93,884.50 × 37,405.82
  4. Step 4: Simplify right side
    68,031.44x = 3,511,826,707.79
  5. Step 5: Solve for x
    x = 3,511,826,707.79/68,031.44
  6. Step 6: Final answer
    x = 51,620.64

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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.