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Finding the Fourth Proportional to 68,657.08, 103,052.11 and 33,143.33

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Solution

The fourth proportional to 68,657.08, 103,052.11 and 33,143.33 is: 49,747.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,657.08 : 103,052.11 = 33,143.33 : x
  2. Step 2: Convert to fraction form
    68,657.08/103,052.11 = 33,143.33/x
  3. Step 3: Cross multiply
    68,657.08x = 103,052.11 × 33,143.33
  4. Step 4: Simplify right side
    68,657.08x = 3,415,490,088.93
  5. Step 5: Solve for x
    x = 3,415,490,088.93/68,657.08
  6. Step 6: Final answer
    x = 49,747.09

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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.