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Finding the Fourth Proportional to 73,131.80, 102,617.80 and 73,131.80

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Solution

The fourth proportional to 73,131.80, 102,617.80 and 73,131.80 is: 102,617.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,131.80 : 102,617.80 = 73,131.80 : x
  2. Step 2: Convert to fraction form
    73,131.80/102,617.80 = 73,131.80/x
  3. Step 3: Cross multiply
    73,131.80x = 102,617.80 × 73,131.80
  4. Step 4: Simplify right side
    73,131.80x = 7,504,624,426.04
  5. Step 5: Solve for x
    x = 7,504,624,426.04/73,131.80
  6. Step 6: Final answer
    x = 102,617.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.