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Finding the Fourth Proportional to 322,504.80, 445,061.92 and 177,316.68

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Solution

The fourth proportional to 322,504.80, 445,061.92 and 177,316.68 is: 244,699.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,504.80 : 445,061.92 = 177,316.68 : x
  2. Step 2: Convert to fraction form
    322,504.80/445,061.92 = 177,316.68/x
  3. Step 3: Cross multiply
    322,504.80x = 445,061.92 × 177,316.68
  4. Step 4: Simplify right side
    322,504.80x = 78,916,902,048.83
  5. Step 5: Solve for x
    x = 78,916,902,048.83/322,504.80
  6. Step 6: Final answer
    x = 244,699.93

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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.