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Finding the Fourth Proportional to 68,940.03, 95,122.50 and 40,246.68

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Solution

The fourth proportional to 68,940.03, 95,122.50 and 40,246.68 is: 55,531.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,940.03 : 95,122.50 = 40,246.68 : x
  2. Step 2: Convert to fraction form
    68,940.03/95,122.50 = 40,246.68/x
  3. Step 3: Cross multiply
    68,940.03x = 95,122.50 × 40,246.68
  4. Step 4: Simplify right side
    68,940.03x = 3,828,364,818.30
  5. Step 5: Solve for x
    x = 3,828,364,818.30/68,940.03
  6. Step 6: Final answer
    x = 55,531.81

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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.