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Finding the Fourth Proportional to 80,409.90, 110,964.15 and 44,111.50

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Solution

The fourth proportional to 80,409.90, 110,964.15 and 44,111.50 is: 60,873.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,409.90 : 110,964.15 = 44,111.50 : x
  2. Step 2: Convert to fraction form
    80,409.90/110,964.15 = 44,111.50/x
  3. Step 3: Cross multiply
    80,409.90x = 110,964.15 × 44,111.50
  4. Step 4: Simplify right side
    80,409.90x = 4,894,795,102.73
  5. Step 5: Solve for x
    x = 4,894,795,102.73/80,409.90
  6. Step 6: Final answer
    x = 60,873.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.