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Finding the Fourth Proportional to 163,416.11, 225,535.30 and 91,796.11

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Solution

The fourth proportional to 163,416.11, 225,535.30 and 91,796.11 is: 126,690.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,416.11 : 225,535.30 = 91,796.11 : x
  2. Step 2: Convert to fraction form
    163,416.11/225,535.30 = 91,796.11/x
  3. Step 3: Cross multiply
    163,416.11x = 225,535.30 × 91,796.11
  4. Step 4: Simplify right side
    163,416.11x = 20,703,263,207.68
  5. Step 5: Solve for x
    x = 20,703,263,207.68/163,416.11
  6. Step 6: Final answer
    x = 126,690.47

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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.