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Finding the Fourth Proportional to 185,571.82, 278,505.33 and 67,276.90

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Solution

The fourth proportional to 185,571.82, 278,505.33 and 67,276.90 is: 100,968.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,571.82 : 278,505.33 = 67,276.90 : x
  2. Step 2: Convert to fraction form
    185,571.82/278,505.33 = 67,276.90/x
  3. Step 3: Cross multiply
    185,571.82x = 278,505.33 × 67,276.90
  4. Step 4: Simplify right side
    185,571.82x = 18,736,975,235.88
  5. Step 5: Solve for x
    x = 18,736,975,235.88/185,571.82
  6. Step 6: Final answer
    x = 100,968.86

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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.