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Finding the Fourth Proportional to 73,940.65, 102,041.78 and 43,743.65

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Solution

The fourth proportional to 73,940.65, 102,041.78 and 43,743.65 is: 60,368.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,940.65 : 102,041.78 = 43,743.65 : x
  2. Step 2: Convert to fraction form
    73,940.65/102,041.78 = 43,743.65/x
  3. Step 3: Cross multiply
    73,940.65x = 102,041.78 × 43,743.65
  4. Step 4: Simplify right side
    73,940.65x = 4,463,679,180.77
  5. Step 5: Solve for x
    x = 4,463,679,180.77/73,940.65
  6. Step 6: Final answer
    x = 60,368.41

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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.