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Finding the Fourth Proportional to 73,858.67, 110,824.14 and 45,771.20

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Solution

The fourth proportional to 73,858.67, 110,824.14 and 45,771.20 is: 68,679.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,858.67 : 110,824.14 = 45,771.20 : x
  2. Step 2: Convert to fraction form
    73,858.67/110,824.14 = 45,771.20/x
  3. Step 3: Cross multiply
    73,858.67x = 110,824.14 × 45,771.20
  4. Step 4: Simplify right side
    73,858.67x = 5,072,553,876.77
  5. Step 5: Solve for x
    x = 5,072,553,876.77/73,858.67
  6. Step 6: Final answer
    x = 68,679.19

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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.