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Finding the Fourth Proportional to 68,048.69, 93,918.81 and 43,842.84

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Solution

The fourth proportional to 68,048.69, 93,918.81 and 43,842.84 is: 60,510.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,048.69 : 93,918.81 = 43,842.84 : x
  2. Step 2: Convert to fraction form
    68,048.69/93,918.81 = 43,842.84/x
  3. Step 3: Cross multiply
    68,048.69x = 93,918.81 × 43,842.84
  4. Step 4: Simplify right side
    68,048.69x = 4,117,667,359.82
  5. Step 5: Solve for x
    x = 4,117,667,359.82/68,048.69
  6. Step 6: Final answer
    x = 60,510.61

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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.