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Finding the Fourth Proportional to 86,863.92, 119,876.76 and 49,141.68

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Solution

The fourth proportional to 86,863.92, 119,876.76 and 49,141.68 is: 67,818.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,863.92 : 119,876.76 = 49,141.68 : x
  2. Step 2: Convert to fraction form
    86,863.92/119,876.76 = 49,141.68/x
  3. Step 3: Cross multiply
    86,863.92x = 119,876.76 × 49,141.68
  4. Step 4: Simplify right side
    86,863.92x = 5,890,945,379.36
  5. Step 5: Solve for x
    x = 5,890,945,379.36/86,863.92
  6. Step 6: Final answer
    x = 67,818.09

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1.5x scale

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.