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Finding the Fourth Proportional to 172,908.96, 259,363.44 and 133,523.52

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Solution

The fourth proportional to 172,908.96, 259,363.44 and 133,523.52 is: 200,285.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,908.96 : 259,363.44 = 133,523.52 : x
  2. Step 2: Convert to fraction form
    172,908.96/259,363.44 = 133,523.52/x
  3. Step 3: Cross multiply
    172,908.96x = 259,363.44 × 133,523.52
  4. Step 4: Simplify right side
    172,908.96x = 34,631,119,468.11
  5. Step 5: Solve for x
    x = 34,631,119,468.11/172,908.96
  6. Step 6: Final answer
    x = 200,285.28

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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.