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Finding the Fourth Proportional to 89,994.39, 134,865.09 and 40,014.15

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Solution

The fourth proportional to 89,994.39, 134,865.09 and 40,014.15 is: 59,964.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,994.39 : 134,865.09 = 40,014.15 : x
  2. Step 2: Convert to fraction form
    89,994.39/134,865.09 = 40,014.15/x
  3. Step 3: Cross multiply
    89,994.39x = 134,865.09 × 40,014.15
  4. Step 4: Simplify right side
    89,994.39x = 5,396,511,941.02
  5. Step 5: Solve for x
    x = 5,396,511,941.02/89,994.39
  6. Step 6: Final answer
    x = 59,964.98

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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.