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Finding the Fourth Proportional to 269,827.70, 404,790.15 and 112,072.10

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Solution

The fourth proportional to 269,827.70, 404,790.15 and 112,072.10 is: 168,128.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,827.70 : 404,790.15 = 112,072.10 : x
  2. Step 2: Convert to fraction form
    269,827.70/404,790.15 = 112,072.10/x
  3. Step 3: Cross multiply
    269,827.70x = 404,790.15 × 112,072.10
  4. Step 4: Simplify right side
    269,827.70x = 45,365,682,169.82
  5. Step 5: Solve for x
    x = 45,365,682,169.82/269,827.70
  6. Step 6: Final answer
    x = 168,128.34

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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.