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Finding the Fourth Proportional to 258,212.59, 356,012.98 and 171,982.62

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Solution

The fourth proportional to 258,212.59, 356,012.98 and 171,982.62 is: 237,122.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,212.59 : 356,012.98 = 171,982.62 : x
  2. Step 2: Convert to fraction form
    258,212.59/356,012.98 = 171,982.62/x
  3. Step 3: Cross multiply
    258,212.59x = 356,012.98 × 171,982.62
  4. Step 4: Simplify right side
    258,212.59x = 61,228,044,624.45
  5. Step 5: Solve for x
    x = 61,228,044,624.45/258,212.59
  6. Step 6: Final answer
    x = 237,122.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.