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Finding the Fourth Proportional to 183,977.52, 275,735.43 and 78,672.66

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Solution

The fourth proportional to 183,977.52, 275,735.43 and 78,672.66 is: 117,910.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,977.52 : 275,735.43 = 78,672.66 : x
  2. Step 2: Convert to fraction form
    183,977.52/275,735.43 = 78,672.66/x
  3. Step 3: Cross multiply
    183,977.52x = 275,735.43 × 78,672.66
  4. Step 4: Simplify right side
    183,977.52x = 21,692,839,734.34
  5. Step 5: Solve for x
    x = 21,692,839,734.34/183,977.52
  6. Step 6: Final answer
    x = 117,910.27

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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.