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Finding the Fourth Proportional to 219,876.72, 329,863.46 and 125,151.48

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Solution

The fourth proportional to 219,876.72, 329,863.46 and 125,151.48 is: 187,754.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,876.72 : 329,863.46 = 125,151.48 : x
  2. Step 2: Convert to fraction form
    219,876.72/329,863.46 = 125,151.48/x
  3. Step 3: Cross multiply
    219,876.72x = 329,863.46 × 125,151.48
  4. Step 4: Simplify right side
    219,876.72x = 41,282,900,216.92
  5. Step 5: Solve for x
    x = 41,282,900,216.92/219,876.72
  6. Step 6: Final answer
    x = 187,754.76

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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.