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Finding the Fourth Proportional to 163,930.44, 245,811.04 and 75,107.82

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Solution

The fourth proportional to 163,930.44, 245,811.04 and 75,107.82 is: 112,622.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,930.44 : 245,811.04 = 75,107.82 : x
  2. Step 2: Convert to fraction form
    163,930.44/245,811.04 = 75,107.82/x
  3. Step 3: Cross multiply
    163,930.44x = 245,811.04 × 75,107.82
  4. Step 4: Simplify right side
    163,930.44x = 18,462,331,346.33
  5. Step 5: Solve for x
    x = 18,462,331,346.33/163,930.44
  6. Step 6: Final answer
    x = 112,622.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.