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Finding the Fourth Proportional to 68,914.33, 95,101.79 and 38,699.67

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Solution

The fourth proportional to 68,914.33, 95,101.79 and 38,699.67 is: 53,405.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,914.33 : 95,101.79 = 38,699.67 : x
  2. Step 2: Convert to fraction form
    68,914.33/95,101.79 = 38,699.67/x
  3. Step 3: Cross multiply
    68,914.33x = 95,101.79 × 38,699.67
  4. Step 4: Simplify right side
    68,914.33x = 3,680,408,052.54
  5. Step 5: Solve for x
    x = 3,680,408,052.54/68,914.33
  6. Step 6: Final answer
    x = 53,405.55

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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.