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Finding the Fourth Proportional to 76,206.88, 105,201.96 and 50,755.60

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Solution

The fourth proportional to 76,206.88, 105,201.96 and 50,755.60 is: 70,067.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,206.88 : 105,201.96 = 50,755.60 : x
  2. Step 2: Convert to fraction form
    76,206.88/105,201.96 = 50,755.60/x
  3. Step 3: Cross multiply
    76,206.88x = 105,201.96 × 50,755.60
  4. Step 4: Simplify right side
    76,206.88x = 5,339,588,600.98
  5. Step 5: Solve for x
    x = 5,339,588,600.98/76,206.88
  6. Step 6: Final answer
    x = 70,067.01

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1.5x scale

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.