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Finding the Fourth Proportional to 186,563.39, 279,843.80 and 53,443.80

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Solution

The fourth proportional to 186,563.39, 279,843.80 and 53,443.80 is: 80,165.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,563.39 : 279,843.80 = 53,443.80 : x
  2. Step 2: Convert to fraction form
    186,563.39/279,843.80 = 53,443.80/x
  3. Step 3: Cross multiply
    186,563.39x = 279,843.80 × 53,443.80
  4. Step 4: Simplify right side
    186,563.39x = 14,955,915,811.22
  5. Step 5: Solve for x
    x = 14,955,915,811.22/186,563.39
  6. Step 6: Final answer
    x = 80,165.33

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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.