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Finding the Fourth Proportional to 84,687.99, 127,081.20 and 37,940.87

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Solution

The fourth proportional to 84,687.99, 127,081.20 and 37,940.87 is: 56,933.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,687.99 : 127,081.20 = 37,940.87 : x
  2. Step 2: Convert to fraction form
    84,687.99/127,081.20 = 37,940.87/x
  3. Step 3: Cross multiply
    84,687.99x = 127,081.20 × 37,940.87
  4. Step 4: Simplify right side
    84,687.99x = 4,821,571,288.64
  5. Step 5: Solve for x
    x = 4,821,571,288.64/84,687.99
  6. Step 6: Final answer
    x = 56,933.35

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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.