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Finding the Fourth Proportional to 135,938.90, 203,505.15 and 101,033.30

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Solution

The fourth proportional to 135,938.90, 203,505.15 and 101,033.30 is: 151,250.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,938.90 : 203,505.15 = 101,033.30 : x
  2. Step 2: Convert to fraction form
    135,938.90/203,505.15 = 101,033.30/x
  3. Step 3: Cross multiply
    135,938.90x = 203,505.15 × 101,033.30
  4. Step 4: Simplify right side
    135,938.90x = 20,560,796,871.50
  5. Step 5: Solve for x
    x = 20,560,796,871.50/135,938.90
  6. Step 6: Final answer
    x = 151,250.28

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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.