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Finding the Fourth Proportional to 269,615.40, 404,751.15 and 136,427.10

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Solution

The fourth proportional to 269,615.40, 404,751.15 and 136,427.10 is: 204,806.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,615.40 : 404,751.15 = 136,427.10 : x
  2. Step 2: Convert to fraction form
    269,615.40/404,751.15 = 136,427.10/x
  3. Step 3: Cross multiply
    269,615.40x = 404,751.15 × 136,427.10
  4. Step 4: Simplify right side
    269,615.40x = 55,219,025,616.17
  5. Step 5: Solve for x
    x = 55,219,025,616.17/269,615.40
  6. Step 6: Final answer
    x = 204,806.65

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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.