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Finding the Fourth Proportional to 53,796.80, 80,695.20 and 41,340.80

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Solution

The fourth proportional to 53,796.80, 80,695.20 and 41,340.80 is: 62,011.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,796.80 : 80,695.20 = 41,340.80 : x
  2. Step 2: Convert to fraction form
    53,796.80/80,695.20 = 41,340.80/x
  3. Step 3: Cross multiply
    53,796.80x = 80,695.20 × 41,340.80
  4. Step 4: Simplify right side
    53,796.80x = 3,336,004,124.16
  5. Step 5: Solve for x
    x = 3,336,004,124.16/53,796.80
  6. Step 6: Final answer
    x = 62,011.20

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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.