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Finding the Fourth Proportional to 172,936.56, 259,178.64 and 88,625.28

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Solution

The fourth proportional to 172,936.56, 259,178.64 and 88,625.28 is: 132,822.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,936.56 : 259,178.64 = 88,625.28 : x
  2. Step 2: Convert to fraction form
    172,936.56/259,178.64 = 88,625.28/x
  3. Step 3: Cross multiply
    172,936.56x = 259,178.64 × 88,625.28
  4. Step 4: Simplify right side
    172,936.56x = 22,969,779,540.02
  5. Step 5: Solve for x
    x = 22,969,779,540.02/172,936.56
  6. Step 6: Final answer
    x = 132,822.00

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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.