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Finding the Fourth Proportional to 168,921.88, 253,450.50 and 63,770.68

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Solution

The fourth proportional to 168,921.88, 253,450.50 and 63,770.68 is: 95,681.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,921.88 : 253,450.50 = 63,770.68 : x
  2. Step 2: Convert to fraction form
    168,921.88/253,450.50 = 63,770.68/x
  3. Step 3: Cross multiply
    168,921.88x = 253,450.50 × 63,770.68
  4. Step 4: Simplify right side
    168,921.88x = 16,162,710,731.34
  5. Step 5: Solve for x
    x = 16,162,710,731.34/168,921.88
  6. Step 6: Final answer
    x = 95,681.57

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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.