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Finding the Fourth Proportional to 75,960.87, 104,804.66 and 43,693.80

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Solution

The fourth proportional to 75,960.87, 104,804.66 and 43,693.80 is: 60,285.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,960.87 : 104,804.66 = 43,693.80 : x
  2. Step 2: Convert to fraction form
    75,960.87/104,804.66 = 43,693.80/x
  3. Step 3: Cross multiply
    75,960.87x = 104,804.66 × 43,693.80
  4. Step 4: Simplify right side
    75,960.87x = 4,579,313,329.08
  5. Step 5: Solve for x
    x = 4,579,313,329.08/75,960.87
  6. Step 6: Final answer
    x = 60,285.17

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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.