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Finding the Fourth Proportional to 163,608.35, 225,773.75 and 91,992.47

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Solution

The fourth proportional to 163,608.35, 225,773.75 and 91,992.47 is: 126,946.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,608.35 : 225,773.75 = 91,992.47 : x
  2. Step 2: Convert to fraction form
    163,608.35/225,773.75 = 91,992.47/x
  3. Step 3: Cross multiply
    163,608.35x = 225,773.75 × 91,992.47
  4. Step 4: Simplify right side
    163,608.35x = 20,769,484,463.70
  5. Step 5: Solve for x
    x = 20,769,484,463.70/163,608.35
  6. Step 6: Final answer
    x = 126,946.36

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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.