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Finding the Fourth Proportional to 183,744.30, 275,616.45 and 78,573.90

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Solution

The fourth proportional to 183,744.30, 275,616.45 and 78,573.90 is: 117,860.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,744.30 : 275,616.45 = 78,573.90 : x
  2. Step 2: Convert to fraction form
    183,744.30/275,616.45 = 78,573.90/x
  3. Step 3: Cross multiply
    183,744.30x = 275,616.45 × 78,573.90
  4. Step 4: Simplify right side
    183,744.30x = 21,656,259,380.66
  5. Step 5: Solve for x
    x = 21,656,259,380.66/183,744.30
  6. Step 6: Final answer
    x = 117,860.85

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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.