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Finding the Fourth Proportional to 203,072.01, 304,328.56 and 172,930.29

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Solution

The fourth proportional to 203,072.01, 304,328.56 and 172,930.29 is: 259,157.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,072.01 : 304,328.56 = 172,930.29 : x
  2. Step 2: Convert to fraction form
    203,072.01/304,328.56 = 172,930.29/x
  3. Step 3: Cross multiply
    203,072.01x = 304,328.56 × 172,930.29
  4. Step 4: Simplify right side
    203,072.01x = 52,627,626,136.08
  5. Step 5: Solve for x
    x = 52,627,626,136.08/203,072.01
  6. Step 6: Final answer
    x = 259,157.46

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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.