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Finding the Fourth Proportional to 218,057.33, 327,022.79 and 84,907.91

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Solution

The fourth proportional to 218,057.33, 327,022.79 and 84,907.91 is: 127,337.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,057.33 : 327,022.79 = 84,907.91 : x
  2. Step 2: Convert to fraction form
    218,057.33/327,022.79 = 84,907.91/x
  3. Step 3: Cross multiply
    218,057.33x = 327,022.79 × 84,907.91
  4. Step 4: Simplify right side
    218,057.33x = 27,766,822,014.29
  5. Step 5: Solve for x
    x = 27,766,822,014.29/218,057.33
  6. Step 6: Final answer
    x = 127,337.25

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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.