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Finding the Fourth Proportional to 169,195.76, 253,917.69 and 136,312.85

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Solution

The fourth proportional to 169,195.76, 253,917.69 and 136,312.85 is: 204,569.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,195.76 : 253,917.69 = 136,312.85 : x
  2. Step 2: Convert to fraction form
    169,195.76/253,917.69 = 136,312.85/x
  3. Step 3: Cross multiply
    169,195.76x = 253,917.69 × 136,312.85
  4. Step 4: Simplify right side
    169,195.76x = 34,612,244,879.70
  5. Step 5: Solve for x
    x = 34,612,244,879.70/169,195.76
  6. Step 6: Final answer
    x = 204,569.22

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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.