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Finding the Fourth Proportional to 168,951.72, 253,390.86 and 50,591.28

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Solution

The fourth proportional to 168,951.72, 253,390.86 and 50,591.28 is: 75,875.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,951.72 : 253,390.86 = 50,591.28 : x
  2. Step 2: Convert to fraction form
    168,951.72/253,390.86 = 50,591.28/x
  3. Step 3: Cross multiply
    168,951.72x = 253,390.86 × 50,591.28
  4. Step 4: Simplify right side
    168,951.72x = 12,819,367,947.70
  5. Step 5: Solve for x
    x = 12,819,367,947.70/168,951.72
  6. Step 6: Final answer
    x = 75,875.92

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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.