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Finding the Fourth Proportional to 169,756.88, 254,690.55 and 80,998.88

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Solution

The fourth proportional to 169,756.88, 254,690.55 and 80,998.88 is: 121,524.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,756.88 : 254,690.55 = 80,998.88 : x
  2. Step 2: Convert to fraction form
    169,756.88/254,690.55 = 80,998.88/x
  3. Step 3: Cross multiply
    169,756.88x = 254,690.55 × 80,998.88
  4. Step 4: Simplify right side
    169,756.88x = 20,629,648,023.13
  5. Step 5: Solve for x
    x = 20,629,648,023.13/169,756.88
  6. Step 6: Final answer
    x = 121,524.67

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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.