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Finding the Fourth Proportional to 324,072.52, 486,108.80 and 102,456.52

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Solution

The fourth proportional to 324,072.52, 486,108.80 and 102,456.52 is: 153,684.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,072.52 : 486,108.80 = 102,456.52 : x
  2. Step 2: Convert to fraction form
    324,072.52/486,108.80 = 102,456.52/x
  3. Step 3: Cross multiply
    324,072.52x = 486,108.80 × 102,456.52
  4. Step 4: Simplify right side
    324,072.52x = 49,805,015,989.38
  5. Step 5: Solve for x
    x = 49,805,015,989.38/324,072.52
  6. Step 6: Final answer
    x = 153,684.79

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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.