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Finding the Fourth Proportional to 55,268.80, 82,805.60 and 53,441.60

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Solution

The fourth proportional to 55,268.80, 82,805.60 and 53,441.60 is: 80,068.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,268.80 : 82,805.60 = 53,441.60 : x
  2. Step 2: Convert to fraction form
    55,268.80/82,805.60 = 53,441.60/x
  3. Step 3: Cross multiply
    55,268.80x = 82,805.60 × 53,441.60
  4. Step 4: Simplify right side
    55,268.80x = 4,425,263,752.96
  5. Step 5: Solve for x
    x = 4,425,263,752.96/55,268.80
  6. Step 6: Final answer
    x = 80,068.03

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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.