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Finding the Fourth Proportional to 172,682.63, 259,171.56 and 67,575.41

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Solution

The fourth proportional to 172,682.63, 259,171.56 and 67,575.41 is: 101,420.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,682.63 : 259,171.56 = 67,575.41 : x
  2. Step 2: Convert to fraction form
    172,682.63/259,171.56 = 67,575.41/x
  3. Step 3: Cross multiply
    172,682.63x = 259,171.56 × 67,575.41
  4. Step 4: Simplify right side
    172,682.63x = 17,513,623,131.48
  5. Step 5: Solve for x
    x = 17,513,623,131.48/172,682.63
  6. Step 6: Final answer
    x = 101,420.88

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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.