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Finding the Fourth Proportional to 168,951.22, 253,390.11 and 50,590.78

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Solution

The fourth proportional to 168,951.22, 253,390.11 and 50,590.78 is: 75,875.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,951.22 : 253,390.11 = 50,590.78 : x
  2. Step 2: Convert to fraction form
    168,951.22/253,390.11 = 50,590.78/x
  3. Step 3: Cross multiply
    168,951.22x = 253,390.11 × 50,590.78
  4. Step 4: Simplify right side
    168,951.22x = 12,819,203,309.19
  5. Step 5: Solve for x
    x = 12,819,203,309.19/168,951.22
  6. Step 6: Final answer
    x = 75,875.17

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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.