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Finding the Fourth Proportional to 234,422.51, 323,502.72 and 126,992.97

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Solution

The fourth proportional to 234,422.51, 323,502.72 and 126,992.97 is: 175,250.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,422.51 : 323,502.72 = 126,992.97 : x
  2. Step 2: Convert to fraction form
    234,422.51/323,502.72 = 126,992.97/x
  3. Step 3: Cross multiply
    234,422.51x = 323,502.72 × 126,992.97
  4. Step 4: Simplify right side
    234,422.51x = 41,082,571,215.88
  5. Step 5: Solve for x
    x = 41,082,571,215.88/234,422.51
  6. Step 6: Final answer
    x = 175,250.12

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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.