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Finding the Fourth Proportional to 251,193.80, 376,556.46 and 84,865.48

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Solution

The fourth proportional to 251,193.80, 376,556.46 and 84,865.48 is: 127,219.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,193.80 : 376,556.46 = 84,865.48 : x
  2. Step 2: Convert to fraction form
    251,193.80/376,556.46 = 84,865.48/x
  3. Step 3: Cross multiply
    251,193.80x = 376,556.46 × 84,865.48
  4. Step 4: Simplify right side
    251,193.80x = 31,956,644,725.00
  5. Step 5: Solve for x
    x = 31,956,644,725.00/251,193.80
  6. Step 6: Final answer
    x = 127,219.08

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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.