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Finding the Fourth Proportional to 273,854.40, 410,824.80 and 86,884.80

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Solution

The fourth proportional to 273,854.40, 410,824.80 and 86,884.80 is: 130,340.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,854.40 : 410,824.80 = 86,884.80 : x
  2. Step 2: Convert to fraction form
    273,854.40/410,824.80 = 86,884.80/x
  3. Step 3: Cross multiply
    273,854.40x = 410,824.80 × 86,884.80
  4. Step 4: Simplify right side
    273,854.40x = 35,694,430,583.04
  5. Step 5: Solve for x
    x = 35,694,430,583.04/273,854.40
  6. Step 6: Final answer
    x = 130,340.91

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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.