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Finding the Fourth Proportional to 231,735, 319,794.30 and 125,751

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Solution

The fourth proportional to 231,735, 319,794.30 and 125,751 is: 173,536.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,735 : 319,794.30 = 125,751 : x
  2. Step 2: Convert to fraction form
    231,735/319,794.30 = 125,751/x
  3. Step 3: Cross multiply
    231,735x = 319,794.30 × 125,751
  4. Step 4: Simplify right side
    231,735x = 40,214,453,019.30
  5. Step 5: Solve for x
    x = 40,214,453,019.30/231,735
  6. Step 6: Final answer
    x = 173,536.38

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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.