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Finding the Fourth Proportional to 273,734.71, 410,616.65 and 86,760.79

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Solution

The fourth proportional to 273,734.71, 410,616.65 and 86,760.79 is: 130,145.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,734.71 : 410,616.65 = 86,760.79 : x
  2. Step 2: Convert to fraction form
    273,734.71/410,616.65 = 86,760.79/x
  3. Step 3: Cross multiply
    273,734.71x = 410,616.65 × 86,760.79
  4. Step 4: Simplify right side
    273,734.71x = 35,625,424,507.35
  5. Step 5: Solve for x
    x = 35,625,424,507.35/273,734.71
  6. Step 6: Final answer
    x = 130,145.81

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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.