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Finding the Fourth Proportional to 68,047.74, 101,995.97 and 51,353.64

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Solution

The fourth proportional to 68,047.74, 101,995.97 and 51,353.64 is: 76,973.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,047.74 : 101,995.97 = 51,353.64 : x
  2. Step 2: Convert to fraction form
    68,047.74/101,995.97 = 51,353.64/x
  3. Step 3: Cross multiply
    68,047.74x = 101,995.97 × 51,353.64
  4. Step 4: Simplify right side
    68,047.74x = 5,237,864,453.21
  5. Step 5: Solve for x
    x = 5,237,864,453.21/68,047.74
  6. Step 6: Final answer
    x = 76,973.38

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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.