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Finding the Fourth Proportional to 273,433.92, 410,153.44 and 86,446.40

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Solution

The fourth proportional to 273,433.92, 410,153.44 and 86,446.40 is: 129,670.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,433.92 : 410,153.44 = 86,446.40 : x
  2. Step 2: Convert to fraction form
    273,433.92/410,153.44 = 86,446.40/x
  3. Step 3: Cross multiply
    273,433.92x = 410,153.44 × 86,446.40
  4. Step 4: Simplify right side
    273,433.92x = 35,456,288,335.62
  5. Step 5: Solve for x
    x = 35,456,288,335.62/273,433.92
  6. Step 6: Final answer
    x = 129,670.41

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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.