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Finding the Fourth Proportional to 86,803.73, 119,749.43 and 50,993.09

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Solution

The fourth proportional to 86,803.73, 119,749.43 and 50,993.09 is: 70,347.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,803.73 : 119,749.43 = 50,993.09 : x
  2. Step 2: Convert to fraction form
    86,803.73/119,749.43 = 50,993.09/x
  3. Step 3: Cross multiply
    86,803.73x = 119,749.43 × 50,993.09
  4. Step 4: Simplify right side
    86,803.73x = 6,106,393,206.47
  5. Step 5: Solve for x
    x = 6,106,393,206.47/86,803.73
  6. Step 6: Final answer
    x = 70,347.13

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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.