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Finding the Fourth Proportional to 117,212.96, 161,753.22 and 63,499.02

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Solution

The fourth proportional to 117,212.96, 161,753.22 and 63,499.02 is: 87,628.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,212.96 : 161,753.22 = 63,499.02 : x
  2. Step 2: Convert to fraction form
    117,212.96/161,753.22 = 63,499.02/x
  3. Step 3: Cross multiply
    117,212.96x = 161,753.22 × 63,499.02
  4. Step 4: Simplify right side
    117,212.96x = 10,271,170,951.84
  5. Step 5: Solve for x
    x = 10,271,170,951.84/117,212.96
  6. Step 6: Final answer
    x = 87,628.29

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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.