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Finding the Fourth Proportional to 75,908.69, 104,784.87 and 49,053.41

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Solution

The fourth proportional to 75,908.69, 104,784.87 and 49,053.41 is: 67,713.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,908.69 : 104,784.87 = 49,053.41 : x
  2. Step 2: Convert to fraction form
    75,908.69/104,784.87 = 49,053.41/x
  3. Step 3: Cross multiply
    75,908.69x = 104,784.87 × 49,053.41
  4. Step 4: Simplify right side
    75,908.69x = 5,140,054,665.98
  5. Step 5: Solve for x
    x = 5,140,054,665.98/75,908.69
  6. Step 6: Final answer
    x = 67,713.66

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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.