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Finding the Fourth Proportional to 136,446.80, 204,475.80 and 100,628.60

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Solution

The fourth proportional to 136,446.80, 204,475.80 and 100,628.60 is: 150,799.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,446.80 : 204,475.80 = 100,628.60 : x
  2. Step 2: Convert to fraction form
    136,446.80/204,475.80 = 100,628.60/x
  3. Step 3: Cross multiply
    136,446.80x = 204,475.80 × 100,628.60
  4. Step 4: Simplify right side
    136,446.80x = 20,576,113,487.88
  5. Step 5: Solve for x
    x = 20,576,113,487.88/136,446.80
  6. Step 6: Final answer
    x = 150,799.53

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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.