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Finding the Fourth Proportional to 172,366.60, 258,744.30 and 133,097.80

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Solution

The fourth proportional to 172,366.60, 258,744.30 and 133,097.80 is: 199,796.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,366.60 : 258,744.30 = 133,097.80 : x
  2. Step 2: Convert to fraction form
    172,366.60/258,744.30 = 133,097.80/x
  3. Step 3: Cross multiply
    172,366.60x = 258,744.30 × 133,097.80
  4. Step 4: Simplify right side
    172,366.60x = 34,438,297,092.54
  5. Step 5: Solve for x
    x = 34,438,297,092.54/172,366.60
  6. Step 6: Final answer
    x = 199,796.81

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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.