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Finding the Fourth Proportional to 246,072.80, 369,109.20 and 214,968.80

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Solution

The fourth proportional to 246,072.80, 369,109.20 and 214,968.80 is: 322,453.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,072.80 : 369,109.20 = 214,968.80 : x
  2. Step 2: Convert to fraction form
    246,072.80/369,109.20 = 214,968.80/x
  3. Step 3: Cross multiply
    246,072.80x = 369,109.20 × 214,968.80
  4. Step 4: Simplify right side
    246,072.80x = 79,346,961,792.96
  5. Step 5: Solve for x
    x = 79,346,961,792.96/246,072.80
  6. Step 6: Final answer
    x = 322,453.20

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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.