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Finding the Fourth Proportional to 76,709.52, 115,091.88 and 26,796.96

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Solution

The fourth proportional to 76,709.52, 115,091.88 and 26,796.96 is: 40,205.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,709.52 : 115,091.88 = 26,796.96 : x
  2. Step 2: Convert to fraction form
    76,709.52/115,091.88 = 26,796.96/x
  3. Step 3: Cross multiply
    76,709.52x = 115,091.88 × 26,796.96
  4. Step 4: Simplify right side
    76,709.52x = 3,084,112,504.68
  5. Step 5: Solve for x
    x = 3,084,112,504.68/76,709.52
  6. Step 6: Final answer
    x = 40,205.08

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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.