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Finding the Fourth Proportional to 325,483.75, 449,172.20 and 187,659.92

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Solution

The fourth proportional to 325,483.75, 449,172.20 and 187,659.92 is: 258,973.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,483.75 : 449,172.20 = 187,659.92 : x
  2. Step 2: Convert to fraction form
    325,483.75/449,172.20 = 187,659.92/x
  3. Step 3: Cross multiply
    325,483.75x = 449,172.20 × 187,659.92
  4. Step 4: Simplify right side
    325,483.75x = 84,291,620,710.30
  5. Step 5: Solve for x
    x = 84,291,620,710.30/325,483.75
  6. Step 6: Final answer
    x = 258,973.36

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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.