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Finding the Fourth Proportional to 408,111.93, 612,167.09 and 108,592.52

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Solution

The fourth proportional to 408,111.93, 612,167.09 and 108,592.52 is: 162,888.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,111.93 : 612,167.09 = 108,592.52 : x
  2. Step 2: Convert to fraction form
    408,111.93/612,167.09 = 108,592.52/x
  3. Step 3: Cross multiply
    408,111.93x = 612,167.09 × 108,592.52
  4. Step 4: Simplify right side
    408,111.93x = 66,476,763,360.37
  5. Step 5: Solve for x
    x = 66,476,763,360.37/408,111.93
  6. Step 6: Final answer
    x = 162,888.56

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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.