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Finding the Fourth Proportional to 378,556.13, 567,644.45 and 125,747.98

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Solution

The fourth proportional to 378,556.13, 567,644.45 and 125,747.98 is: 188,558.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,556.13 : 567,644.45 = 125,747.98 : x
  2. Step 2: Convert to fraction form
    378,556.13/567,644.45 = 125,747.98/x
  3. Step 3: Cross multiply
    378,556.13x = 567,644.45 × 125,747.98
  4. Step 4: Simplify right side
    378,556.13x = 71,380,140,897.86
  5. Step 5: Solve for x
    x = 71,380,140,897.86/378,556.13
  6. Step 6: Final answer
    x = 188,558.93

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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.