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Finding the Fourth Proportional to 73,896.40, 110,978.00 and 67,962.34

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Solution

The fourth proportional to 73,896.40, 110,978.00 and 67,962.34 is: 102,066.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,896.40 : 110,978.00 = 67,962.34 : x
  2. Step 2: Convert to fraction form
    73,896.40/110,978.00 = 67,962.34/x
  3. Step 3: Cross multiply
    73,896.40x = 110,978.00 × 67,962.34
  4. Step 4: Simplify right side
    73,896.40x = 7,542,324,622.29
  5. Step 5: Solve for x
    x = 7,542,324,622.29/73,896.40
  6. Step 6: Final answer
    x = 102,066.20

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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.