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Finding the Fourth Proportional to 117,213.96, 161,754.60 and 63,500.02

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Solution

The fourth proportional to 117,213.96, 161,754.60 and 63,500.02 is: 87,629.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,213.96 : 161,754.60 = 63,500.02 : x
  2. Step 2: Convert to fraction form
    117,213.96/161,754.60 = 63,500.02/x
  3. Step 3: Cross multiply
    117,213.96x = 161,754.60 × 63,500.02
  4. Step 4: Simplify right side
    117,213.96x = 10,271,420,335.09
  5. Step 5: Solve for x
    x = 10,271,420,335.09/117,213.96
  6. Step 6: Final answer
    x = 87,629.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.