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Finding the Fourth Proportional to 77,795.50, 107,351.41 and 43,793.12

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Solution

The fourth proportional to 77,795.50, 107,351.41 and 43,793.12 is: 60,430.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,795.50 : 107,351.41 = 43,793.12 : x
  2. Step 2: Convert to fraction form
    77,795.50/107,351.41 = 43,793.12/x
  3. Step 3: Cross multiply
    77,795.50x = 107,351.41 × 43,793.12
  4. Step 4: Simplify right side
    77,795.50x = 4,701,253,180.30
  5. Step 5: Solve for x
    x = 4,701,253,180.30/77,795.50
  6. Step 6: Final answer
    x = 60,430.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.