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Finding the Fourth Proportional to 208,959.36, 313,563.48 and 75,849.96

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Solution

The fourth proportional to 208,959.36, 313,563.48 and 75,849.96 is: 113,820.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,959.36 : 313,563.48 = 75,849.96 : x
  2. Step 2: Convert to fraction form
    208,959.36/313,563.48 = 75,849.96/x
  3. Step 3: Cross multiply
    208,959.36x = 313,563.48 × 75,849.96
  4. Step 4: Simplify right side
    208,959.36x = 23,783,777,415.46
  5. Step 5: Solve for x
    x = 23,783,777,415.46/208,959.36
  6. Step 6: Final answer
    x = 113,820.11

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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.