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Finding the Fourth Proportional to 483,489.78, 725,365.90 and 146,516.82

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Solution

The fourth proportional to 483,489.78, 725,365.90 and 146,516.82 is: 219,815.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,489.78 : 725,365.90 = 146,516.82 : x
  2. Step 2: Convert to fraction form
    483,489.78/725,365.90 = 146,516.82/x
  3. Step 3: Cross multiply
    483,489.78x = 725,365.90 × 146,516.82
  4. Step 4: Simplify right side
    483,489.78x = 106,278,305,004.44
  5. Step 5: Solve for x
    x = 106,278,305,004.44/483,489.78
  6. Step 6: Final answer
    x = 219,815.00

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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.