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Finding the Fourth Proportional to 77,662.89, 116,611.02 and 44,420.49

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Solution

The fourth proportional to 77,662.89, 116,611.02 and 44,420.49 is: 66,697.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,662.89 : 116,611.02 = 44,420.49 : x
  2. Step 2: Convert to fraction form
    77,662.89/116,611.02 = 44,420.49/x
  3. Step 3: Cross multiply
    77,662.89x = 116,611.02 × 44,420.49
  4. Step 4: Simplify right side
    77,662.89x = 5,179,918,647.80
  5. Step 5: Solve for x
    x = 5,179,918,647.80/77,662.89
  6. Step 6: Final answer
    x = 66,697.47

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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.