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Finding the Fourth Proportional to 163,310.34, 225,362.48 and 91,693.38

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Solution

The fourth proportional to 163,310.34, 225,362.48 and 91,693.38 is: 126,533.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,310.34 : 225,362.48 = 91,693.38 : x
  2. Step 2: Convert to fraction form
    163,310.34/225,362.48 = 91,693.38/x
  3. Step 3: Cross multiply
    163,310.34x = 225,362.48 × 91,693.38
  4. Step 4: Simplify right side
    163,310.34x = 20,664,246,618.80
  5. Step 5: Solve for x
    x = 20,664,246,618.80/163,310.34
  6. Step 6: Final answer
    x = 126,533.61

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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.