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Finding the Fourth Proportional to 322,403.96, 483,979.58 and 172,936.16

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Solution

The fourth proportional to 322,403.96, 483,979.58 and 172,936.16 is: 259,604.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,403.96 : 483,979.58 = 172,936.16 : x
  2. Step 2: Convert to fraction form
    322,403.96/483,979.58 = 172,936.16/x
  3. Step 3: Cross multiply
    322,403.96x = 483,979.58 × 172,936.16
  4. Step 4: Simplify right side
    322,403.96x = 83,697,570,083.61
  5. Step 5: Solve for x
    x = 83,697,570,083.61/322,403.96
  6. Step 6: Final answer
    x = 259,604.66

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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.