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Finding the Fourth Proportional to 68,894.92, 103,254.90 and 33,348.88

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Solution

The fourth proportional to 68,894.92, 103,254.90 and 33,348.88 is: 49,980.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,894.92 : 103,254.90 = 33,348.88 : x
  2. Step 2: Convert to fraction form
    68,894.92/103,254.90 = 33,348.88/x
  3. Step 3: Cross multiply
    68,894.92x = 103,254.90 × 33,348.88
  4. Step 4: Simplify right side
    68,894.92x = 3,443,435,269.51
  5. Step 5: Solve for x
    x = 3,443,435,269.51/68,894.92
  6. Step 6: Final answer
    x = 49,980.97

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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.