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Finding the Fourth Proportional to 110,445.20, 165,716.40 and 51,250.40

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Solution

The fourth proportional to 110,445.20, 165,716.40 and 51,250.40 is: 76,898.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,445.20 : 165,716.40 = 51,250.40 : x
  2. Step 2: Convert to fraction form
    110,445.20/165,716.40 = 51,250.40/x
  3. Step 3: Cross multiply
    110,445.20x = 165,716.40 × 51,250.40
  4. Step 4: Simplify right side
    110,445.20x = 8,493,031,786.56
  5. Step 5: Solve for x
    x = 8,493,031,786.56/110,445.20
  6. Step 6: Final answer
    x = 76,898.15

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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.