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Finding the Fourth Proportional to 273,398.40, 409,974.24 and 115,545.60

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Solution

The fourth proportional to 273,398.40, 409,974.24 and 115,545.60 is: 173,266.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,398.40 : 409,974.24 = 115,545.60 : x
  2. Step 2: Convert to fraction form
    273,398.40/409,974.24 = 115,545.60/x
  3. Step 3: Cross multiply
    273,398.40x = 409,974.24 × 115,545.60
  4. Step 4: Simplify right side
    273,398.40x = 47,370,719,545.34
  5. Step 5: Solve for x
    x = 47,370,719,545.34/273,398.40
  6. Step 6: Final answer
    x = 173,266.26

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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.