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Finding the Fourth Proportional to 53,116.80, 79,675.20 and 44,563.20

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Solution

The fourth proportional to 53,116.80, 79,675.20 and 44,563.20 is: 66,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,116.80 : 79,675.20 = 44,563.20 : x
  2. Step 2: Convert to fraction form
    53,116.80/79,675.20 = 44,563.20/x
  3. Step 3: Cross multiply
    53,116.80x = 79,675.20 × 44,563.20
  4. Step 4: Simplify right side
    53,116.80x = 3,550,581,872.64
  5. Step 5: Solve for x
    x = 3,550,581,872.64/53,116.80
  6. Step 6: Final answer
    x = 66,844.80

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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.