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Finding the Fourth Proportional to 207,224.40, 310,964.60 and 82,552.40

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Solution

The fourth proportional to 207,224.40, 310,964.60 and 82,552.40 is: 123,879.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,224.40 : 310,964.60 = 82,552.40 : x
  2. Step 2: Convert to fraction form
    207,224.40/310,964.60 = 82,552.40/x
  3. Step 3: Cross multiply
    207,224.40x = 310,964.60 × 82,552.40
  4. Step 4: Simplify right side
    207,224.40x = 25,670,874,045.04
  5. Step 5: Solve for x
    x = 25,670,874,045.04/207,224.40
  6. Step 6: Final answer
    x = 123,879.59

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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.