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Finding the Fourth Proportional to 68,191.65, 94,104.21 and 37,977.33

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Solution

The fourth proportional to 68,191.65, 94,104.21 and 37,977.33 is: 52,408.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,191.65 : 94,104.21 = 37,977.33 : x
  2. Step 2: Convert to fraction form
    68,191.65/94,104.21 = 37,977.33/x
  3. Step 3: Cross multiply
    68,191.65x = 94,104.21 × 37,977.33
  4. Step 4: Simplify right side
    68,191.65x = 3,573,826,637.56
  5. Step 5: Solve for x
    x = 3,573,826,637.56/68,191.65
  6. Step 6: Final answer
    x = 52,408.57

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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.