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Finding the Fourth Proportional to 208,710, 313,116.84 and 60,966

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Solution

The fourth proportional to 208,710, 313,116.84 and 60,966 is: 91,464.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,710 : 313,116.84 = 60,966 : x
  2. Step 2: Convert to fraction form
    208,710/313,116.84 = 60,966/x
  3. Step 3: Cross multiply
    208,710x = 313,116.84 × 60,966
  4. Step 4: Simplify right side
    208,710x = 19,089,481,267.44
  5. Step 5: Solve for x
    x = 19,089,481,267.44/208,710
  6. Step 6: Final answer
    x = 91,464.14

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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.