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Finding the Fourth Proportional to 251,294.75, 346,789.44 and 136,573.40

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Solution

The fourth proportional to 251,294.75, 346,789.44 and 136,573.40 is: 188,472.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,294.75 : 346,789.44 = 136,573.40 : x
  2. Step 2: Convert to fraction form
    251,294.75/346,789.44 = 136,573.40/x
  3. Step 3: Cross multiply
    251,294.75x = 346,789.44 × 136,573.40
  4. Step 4: Simplify right side
    251,294.75x = 47,362,214,067.49
  5. Step 5: Solve for x
    x = 47,362,214,067.49/251,294.75
  6. Step 6: Final answer
    x = 188,472.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.