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Finding the Fourth Proportional to 86,805.99, 119,742.44 and 50,989.41

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Solution

The fourth proportional to 86,805.99, 119,742.44 and 50,989.41 is: 70,336.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,805.99 : 119,742.44 = 50,989.41 : x
  2. Step 2: Convert to fraction form
    86,805.99/119,742.44 = 50,989.41/x
  3. Step 3: Cross multiply
    86,805.99x = 119,742.44 × 50,989.41
  4. Step 4: Simplify right side
    86,805.99x = 6,105,596,112.61
  5. Step 5: Solve for x
    x = 6,105,596,112.61/86,805.99
  6. Step 6: Final answer
    x = 70,336.12

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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.