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Finding the Fourth Proportional to 72,052.79, 107,991.68 and 50,999.00

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Solution

The fourth proportional to 72,052.79, 107,991.68 and 50,999.00 is: 76,436.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,052.79 : 107,991.68 = 50,999.00 : x
  2. Step 2: Convert to fraction form
    72,052.79/107,991.68 = 50,999.00/x
  3. Step 3: Cross multiply
    72,052.79x = 107,991.68 × 50,999.00
  4. Step 4: Simplify right side
    72,052.79x = 5,507,466,893.37
  5. Step 5: Solve for x
    x = 5,507,466,893.37/72,052.79
  6. Step 6: Final answer
    x = 76,436.56

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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.