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Finding the Fourth Proportional to 117,165.64, 161,688.34 and 63,450.49

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Solution

The fourth proportional to 117,165.64, 161,688.34 and 63,450.49 is: 87,561.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,165.64 : 161,688.34 = 63,450.49 : x
  2. Step 2: Convert to fraction form
    117,165.64/161,688.34 = 63,450.49/x
  3. Step 3: Cross multiply
    117,165.64x = 161,688.34 × 63,450.49
  4. Step 4: Simplify right side
    117,165.64x = 10,259,204,021.64
  5. Step 5: Solve for x
    x = 10,259,204,021.64/117,165.64
  6. Step 6: Final answer
    x = 87,561.54

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