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Finding the Fourth Proportional to 163,217.54, 244,788.03 and 78,936.03

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Solution

The fourth proportional to 163,217.54, 244,788.03 and 78,936.03 is: 118,385.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,217.54 : 244,788.03 = 78,936.03 : x
  2. Step 2: Convert to fraction form
    163,217.54/244,788.03 = 78,936.03/x
  3. Step 3: Cross multiply
    163,217.54x = 244,788.03 × 78,936.03
  4. Step 4: Simplify right side
    163,217.54x = 19,322,595,279.72
  5. Step 5: Solve for x
    x = 19,322,595,279.72/163,217.54
  6. Step 6: Final answer
    x = 118,385.53

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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.