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Finding the Fourth Proportional to 84,618.99, 126,945.23 and 37,872.27

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Solution

The fourth proportional to 84,618.99, 126,945.23 and 37,872.27 is: 56,815.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,618.99 : 126,945.23 = 37,872.27 : x
  2. Step 2: Convert to fraction form
    84,618.99/126,945.23 = 37,872.27/x
  3. Step 3: Cross multiply
    84,618.99x = 126,945.23 × 37,872.27
  4. Step 4: Simplify right side
    84,618.99x = 4,807,703,836.41
  5. Step 5: Solve for x
    x = 4,807,703,836.41/84,618.99
  6. Step 6: Final answer
    x = 56,815.90

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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.