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Finding the Fourth Proportional to 53,144.80, 79,717.20 and 44,591.20

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Solution

The fourth proportional to 53,144.80, 79,717.20 and 44,591.20 is: 66,886.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,144.80 : 79,717.20 = 44,591.20 : x
  2. Step 2: Convert to fraction form
    53,144.80/79,717.20 = 44,591.20/x
  3. Step 3: Cross multiply
    53,144.80x = 79,717.20 × 44,591.20
  4. Step 4: Simplify right side
    53,144.80x = 3,554,685,608.64
  5. Step 5: Solve for x
    x = 3,554,685,608.64/53,144.80
  6. Step 6: Final answer
    x = 66,886.80

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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.