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Finding the Fourth Proportional to 218,623.70, 327,659.26 and 117,169.63

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Solution

The fourth proportional to 218,623.70, 327,659.26 and 117,169.63 is: 175,606.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,623.70 : 327,659.26 = 117,169.63 : x
  2. Step 2: Convert to fraction form
    218,623.70/327,659.26 = 117,169.63/x
  3. Step 3: Cross multiply
    218,623.70x = 327,659.26 × 117,169.63
  4. Step 4: Simplify right side
    218,623.70x = 38,391,713,148.20
  5. Step 5: Solve for x
    x = 38,391,713,148.20/218,623.70
  6. Step 6: Final answer
    x = 175,606.36

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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.