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Finding the Fourth Proportional to 234,717.56, 323,908.46 and 127,287.80

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Solution

The fourth proportional to 234,717.56, 323,908.46 and 127,287.80 is: 175,656.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,717.56 : 323,908.46 = 127,287.80 : x
  2. Step 2: Convert to fraction form
    234,717.56/323,908.46 = 127,287.80/x
  3. Step 3: Cross multiply
    234,717.56x = 323,908.46 × 127,287.80
  4. Step 4: Simplify right side
    234,717.56x = 41,229,595,274.79
  5. Step 5: Solve for x
    x = 41,229,595,274.79/234,717.56
  6. Step 6: Final answer
    x = 175,656.20

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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.