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Finding the Fourth Proportional to 53,767.80, 80,768.34 and 51,799.50

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Solution

The fourth proportional to 53,767.80, 80,768.34 and 51,799.50 is: 77,811.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,767.80 : 80,768.34 = 51,799.50 : x
  2. Step 2: Convert to fraction form
    53,767.80/80,768.34 = 51,799.50/x
  3. Step 3: Cross multiply
    53,767.80x = 80,768.34 × 51,799.50
  4. Step 4: Simplify right side
    53,767.80x = 4,183,759,627.83
  5. Step 5: Solve for x
    x = 4,183,759,627.83/53,767.80
  6. Step 6: Final answer
    x = 77,811.62

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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.