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Finding the Fourth Proportional to 68,326.74, 102,555.72 and 33,291

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Solution

The fourth proportional to 68,326.74, 102,555.72 and 33,291 is: 49,968.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,326.74 : 102,555.72 = 33,291 : x
  2. Step 2: Convert to fraction form
    68,326.74/102,555.72 = 33,291/x
  3. Step 3: Cross multiply
    68,326.74x = 102,555.72 × 33,291
  4. Step 4: Simplify right side
    68,326.74x = 3,414,182,474.52
  5. Step 5: Solve for x
    x = 3,414,182,474.52/68,326.74
  6. Step 6: Final answer
    x = 49,968.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.