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Finding the Fourth Proportional to 203,207.01, 304,853.31 and 76,844.46

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Solution

The fourth proportional to 203,207.01, 304,853.31 and 76,844.46 is: 115,282.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,207.01 : 304,853.31 = 76,844.46 : x
  2. Step 2: Convert to fraction form
    203,207.01/304,853.31 = 76,844.46/x
  3. Step 3: Cross multiply
    203,207.01x = 304,853.31 × 76,844.46
  4. Step 4: Simplify right side
    203,207.01x = 23,426,287,131.13
  5. Step 5: Solve for x
    x = 23,426,287,131.13/203,207.01
  6. Step 6: Final answer
    x = 115,282.87

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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.