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Finding the Fourth Proportional to 52,777.72, 78,811.43 and 52,194.52

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Solution

The fourth proportional to 52,777.72, 78,811.43 and 52,194.52 is: 77,940.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,777.72 : 78,811.43 = 52,194.52 : x
  2. Step 2: Convert to fraction form
    52,777.72/78,811.43 = 52,194.52/x
  3. Step 3: Cross multiply
    52,777.72x = 78,811.43 × 52,194.52
  4. Step 4: Simplify right side
    52,777.72x = 4,113,524,759.36
  5. Step 5: Solve for x
    x = 4,113,524,759.36/52,777.72
  6. Step 6: Final answer
    x = 77,940.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.