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Finding the Fourth Proportional to 68,948.93, 103,365.97 and 26,819.11

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Solution

The fourth proportional to 68,948.93, 103,365.97 and 26,819.11 is: 40,206.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,948.93 : 103,365.97 = 26,819.11 : x
  2. Step 2: Convert to fraction form
    68,948.93/103,365.97 = 26,819.11/x
  3. Step 3: Cross multiply
    68,948.93x = 103,365.97 × 26,819.11
  4. Step 4: Simplify right side
    68,948.93x = 2,772,183,319.69
  5. Step 5: Solve for x
    x = 2,772,183,319.69/68,948.93
  6. Step 6: Final answer
    x = 40,206.33

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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.