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Finding the Fourth Proportional to 323,556.56, 446,509.55 and 187,670.96

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Solution

The fourth proportional to 323,556.56, 446,509.55 and 187,670.96 is: 258,986.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,556.56 : 446,509.55 = 187,670.96 : x
  2. Step 2: Convert to fraction form
    323,556.56/446,509.55 = 187,670.96/x
  3. Step 3: Cross multiply
    323,556.56x = 446,509.55 × 187,670.96
  4. Step 4: Simplify right side
    323,556.56x = 83,796,875,897.67
  5. Step 5: Solve for x
    x = 83,796,875,897.67/323,556.56
  6. Step 6: Final answer
    x = 258,986.79

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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.