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Finding the Fourth Proportional to 203,181.22, 304,791.89 and 70,043.95

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Solution

The fourth proportional to 203,181.22, 304,791.89 and 70,043.95 is: 105,072.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,181.22 : 304,791.89 = 70,043.95 : x
  2. Step 2: Convert to fraction form
    203,181.22/304,791.89 = 70,043.95/x
  3. Step 3: Cross multiply
    203,181.22x = 304,791.89 × 70,043.95
  4. Step 4: Simplify right side
    203,181.22x = 21,348,827,934.34
  5. Step 5: Solve for x
    x = 21,348,827,934.34/203,181.22
  6. Step 6: Final answer
    x = 105,072.84

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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.