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Finding the Fourth Proportional to 136,508.96, 188,478.42 and 95,759.72

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Solution

The fourth proportional to 136,508.96, 188,478.42 and 95,759.72 is: 132,215.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,508.96 : 188,478.42 = 95,759.72 : x
  2. Step 2: Convert to fraction form
    136,508.96/188,478.42 = 95,759.72/x
  3. Step 3: Cross multiply
    136,508.96x = 188,478.42 × 95,759.72
  4. Step 4: Simplify right side
    136,508.96x = 18,048,640,725.24
  5. Step 5: Solve for x
    x = 18,048,640,725.24/136,508.96
  6. Step 6: Final answer
    x = 132,215.80

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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.