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Finding the Fourth Proportional to 203,186.01, 304,807.59 and 84,830.43

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Solution

The fourth proportional to 203,186.01, 304,807.59 and 84,830.43 is: 127,257.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,186.01 : 304,807.59 = 84,830.43 : x
  2. Step 2: Convert to fraction form
    203,186.01/304,807.59 = 84,830.43/x
  3. Step 3: Cross multiply
    203,186.01x = 304,807.59 × 84,830.43
  4. Step 4: Simplify right side
    203,186.01x = 25,856,958,926.96
  5. Step 5: Solve for x
    x = 25,856,958,926.96/203,186.01
  6. Step 6: Final answer
    x = 127,257.58

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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.