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Finding the Fourth Proportional to 269,696.80, 404,775.60 and 120,167.20

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Solution

The fourth proportional to 269,696.80, 404,775.60 and 120,167.20 is: 180,353.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,696.80 : 404,775.60 = 120,167.20 : x
  2. Step 2: Convert to fraction form
    269,696.80/404,775.60 = 120,167.20/x
  3. Step 3: Cross multiply
    269,696.80x = 404,775.60 × 120,167.20
  4. Step 4: Simplify right side
    269,696.80x = 48,640,750,480.32
  5. Step 5: Solve for x
    x = 48,640,750,480.32/269,696.80
  6. Step 6: Final answer
    x = 180,353.46

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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.