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Finding the Fourth Proportional to 104,003.70, 155,864.21 and 43,982.30

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Solution

The fourth proportional to 104,003.70, 155,864.21 and 43,982.30 is: 65,913.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,003.70 : 155,864.21 = 43,982.30 : x
  2. Step 2: Convert to fraction form
    104,003.70/155,864.21 = 43,982.30/x
  3. Step 3: Cross multiply
    104,003.70x = 155,864.21 × 43,982.30
  4. Step 4: Simplify right side
    104,003.70x = 6,855,265,444.25
  5. Step 5: Solve for x
    x = 6,855,265,444.25/104,003.70
  6. Step 6: Final answer
    x = 65,913.67

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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.