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Finding the Fourth Proportional to 108,270, 162,419.99 and 33,396.03

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Solution

The fourth proportional to 108,270, 162,419.99 and 33,396.03 is: 50,098.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,270 : 162,419.99 = 33,396.03 : x
  2. Step 2: Convert to fraction form
    108,270/162,419.99 = 33,396.03/x
  3. Step 3: Cross multiply
    108,270x = 162,419.99 × 33,396.03
  4. Step 4: Simplify right side
    108,270x = 5,424,182,691.66
  5. Step 5: Solve for x
    x = 5,424,182,691.66/108,270
  6. Step 6: Final answer
    x = 50,098.67

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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.