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Finding the Fourth Proportional to 68,154.97, 94,051.65 and 37,939.30

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Solution

The fourth proportional to 68,154.97, 94,051.65 and 37,939.30 is: 52,355.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,154.97 : 94,051.65 = 37,939.30 : x
  2. Step 2: Convert to fraction form
    68,154.97/94,051.65 = 37,939.30/x
  3. Step 3: Cross multiply
    68,154.97x = 94,051.65 × 37,939.30
  4. Step 4: Simplify right side
    68,154.97x = 3,568,253,764.85
  5. Step 5: Solve for x
    x = 3,568,253,764.85/68,154.97
  6. Step 6: Final answer
    x = 52,355.00

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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.