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Finding the Fourth Proportional to 43,200.68, 64,761.53 and 36,579.80

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Solution

The fourth proportional to 43,200.68, 64,761.53 and 36,579.80 is: 54,836.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,200.68 : 64,761.53 = 36,579.80 : x
  2. Step 2: Convert to fraction form
    43,200.68/64,761.53 = 36,579.80/x
  3. Step 3: Cross multiply
    43,200.68x = 64,761.53 × 36,579.80
  4. Step 4: Simplify right side
    43,200.68x = 2,368,963,794.10
  5. Step 5: Solve for x
    x = 2,368,963,794.10/43,200.68
  6. Step 6: Final answer
    x = 54,836.27

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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.