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Finding the Fourth Proportional to 77,314.50, 106,694.01 and 43,786.98

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Solution

The fourth proportional to 77,314.50, 106,694.01 and 43,786.98 is: 60,426.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,314.50 : 106,694.01 = 43,786.98 : x
  2. Step 2: Convert to fraction form
    77,314.50/106,694.01 = 43,786.98/x
  3. Step 3: Cross multiply
    77,314.50x = 106,694.01 × 43,786.98
  4. Step 4: Simplify right side
    77,314.50x = 4,671,808,481.99
  5. Step 5: Solve for x
    x = 4,671,808,481.99/77,314.50
  6. Step 6: Final answer
    x = 60,426.03

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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.