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Finding the Fourth Proportional to 86,296, 119,091.36 and 52,755.52

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Solution

The fourth proportional to 86,296, 119,091.36 and 52,755.52 is: 72,804.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,296 : 119,091.36 = 52,755.52 : x
  2. Step 2: Convert to fraction form
    86,296/119,091.36 = 52,755.52/x
  3. Step 3: Cross multiply
    86,296x = 119,091.36 × 52,755.52
  4. Step 4: Simplify right side
    86,296x = 6,282,726,624.31
  5. Step 5: Solve for x
    x = 6,282,726,624.31/86,296
  6. Step 6: Final answer
    x = 72,804.38

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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.