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Finding the Fourth Proportional to 273,763.16, 410,659.46 and 86,789.24

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Solution

The fourth proportional to 273,763.16, 410,659.46 and 86,789.24 is: 130,188.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,763.16 : 410,659.46 = 86,789.24 : x
  2. Step 2: Convert to fraction form
    273,763.16/410,659.46 = 86,789.24/x
  3. Step 3: Cross multiply
    273,763.16x = 410,659.46 × 86,789.24
  4. Step 4: Simplify right side
    273,763.16x = 35,640,822,432.21
  5. Step 5: Solve for x
    x = 35,640,822,432.21/273,763.16
  6. Step 6: Final answer
    x = 130,188.53

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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.