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Finding the Fourth Proportional to 168,687.56, 253,064.76 and 88,763.65

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Solution

The fourth proportional to 168,687.56, 253,064.76 and 88,763.65 is: 133,163.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,687.56 : 253,064.76 = 88,763.65 : x
  2. Step 2: Convert to fraction form
    168,687.56/253,064.76 = 88,763.65/x
  3. Step 3: Cross multiply
    168,687.56x = 253,064.76 × 88,763.65
  4. Step 4: Simplify right side
    168,687.56x = 22,462,950,818.45
  5. Step 5: Solve for x
    x = 22,462,950,818.45/168,687.56
  6. Step 6: Final answer
    x = 133,163.05

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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.