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Finding the Fourth Proportional to 108,649.92, 162,933.92 and 45,474.42

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Solution

The fourth proportional to 108,649.92, 162,933.92 and 45,474.42 is: 68,194.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,649.92 : 162,933.92 = 45,474.42 : x
  2. Step 2: Convert to fraction form
    108,649.92/162,933.92 = 45,474.42/x
  3. Step 3: Cross multiply
    108,649.92x = 162,933.92 × 45,474.42
  4. Step 4: Simplify right side
    108,649.92x = 7,409,325,282.95
  5. Step 5: Solve for x
    x = 7,409,325,282.95/108,649.92
  6. Step 6: Final answer
    x = 68,194.48

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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.