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Finding the Fourth Proportional to 53,811.80, 80,717.70 and 41,355.80

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Solution

The fourth proportional to 53,811.80, 80,717.70 and 41,355.80 is: 62,033.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,811.80 : 80,717.70 = 41,355.80 : x
  2. Step 2: Convert to fraction form
    53,811.80/80,717.70 = 41,355.80/x
  3. Step 3: Cross multiply
    53,811.80x = 80,717.70 × 41,355.80
  4. Step 4: Simplify right side
    53,811.80x = 3,338,145,057.66
  5. Step 5: Solve for x
    x = 3,338,145,057.66/53,811.80
  6. Step 6: Final answer
    x = 62,033.70

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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.