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Finding the Fourth Proportional to 66,052.75, 99,020.80 and 50,539.63

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Solution

The fourth proportional to 66,052.75, 99,020.80 and 50,539.63 is: 75,764.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,052.75 : 99,020.80 = 50,539.63 : x
  2. Step 2: Convert to fraction form
    66,052.75/99,020.80 = 50,539.63/x
  3. Step 3: Cross multiply
    66,052.75x = 99,020.80 × 50,539.63
  4. Step 4: Simplify right side
    66,052.75x = 5,004,474,409.93
  5. Step 5: Solve for x
    x = 5,004,474,409.93/66,052.75
  6. Step 6: Final answer
    x = 75,764.82

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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.