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Finding the Fourth Proportional to 133,975.80, 200,949.84 and 67,388.76

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Solution

The fourth proportional to 133,975.80, 200,949.84 and 67,388.76 is: 101,076.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,975.80 : 200,949.84 = 67,388.76 : x
  2. Step 2: Convert to fraction form
    133,975.80/200,949.84 = 67,388.76/x
  3. Step 3: Cross multiply
    133,975.80x = 200,949.84 × 67,388.76
  4. Step 4: Simplify right side
    133,975.80x = 13,541,760,539.80
  5. Step 5: Solve for x
    x = 13,541,760,539.80/133,975.80
  6. Step 6: Final answer
    x = 101,076.17

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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.