Home / 217,042.24-325,174.56-76,711.36

Finding the Fourth Proportional to 217,042.24, 325,174.56 and 76,711.36

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Solution

The fourth proportional to 217,042.24, 325,174.56 and 76,711.36 is: 114,929.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,042.24 : 325,174.56 = 76,711.36 : x
  2. Step 2: Convert to fraction form
    217,042.24/325,174.56 = 76,711.36/x
  3. Step 3: Cross multiply
    217,042.24x = 325,174.56 × 76,711.36
  4. Step 4: Simplify right side
    217,042.24x = 24,944,582,735.00
  5. Step 5: Solve for x
    x = 24,944,582,735.00/217,042.24
  6. Step 6: Final answer
    x = 114,929.62

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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.