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Finding the Fourth Proportional to 117,558.81, 162,231.12 and 63,843.84

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Solution

The fourth proportional to 117,558.81, 162,231.12 and 63,843.84 is: 88,104.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,558.81 : 162,231.12 = 63,843.84 : x
  2. Step 2: Convert to fraction form
    117,558.81/162,231.12 = 63,843.84/x
  3. Step 3: Cross multiply
    117,558.81x = 162,231.12 × 63,843.84
  4. Step 4: Simplify right side
    117,558.81x = 10,357,457,668.30
  5. Step 5: Solve for x
    x = 10,357,457,668.30/117,558.81
  6. Step 6: Final answer
    x = 88,104.48

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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.