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Finding the Fourth Proportional to 214,882.66, 322,463.85 and 81,764.02

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Solution

The fourth proportional to 214,882.66, 322,463.85 and 81,764.02 is: 122,699.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,882.66 : 322,463.85 = 81,764.02 : x
  2. Step 2: Convert to fraction form
    214,882.66/322,463.85 = 81,764.02/x
  3. Step 3: Cross multiply
    214,882.66x = 322,463.85 × 81,764.02
  4. Step 4: Simplify right side
    214,882.66x = 26,365,940,680.68
  5. Step 5: Solve for x
    x = 26,365,940,680.68/214,882.66
  6. Step 6: Final answer
    x = 122,699.25

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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.