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Finding the Fourth Proportional to 445,710.60, 668,567.34 and 113,286.60

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Solution

The fourth proportional to 445,710.60, 668,567.34 and 113,286.60 is: 169,930.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,710.60 : 668,567.34 = 113,286.60 : x
  2. Step 2: Convert to fraction form
    445,710.60/668,567.34 = 113,286.60/x
  3. Step 3: Cross multiply
    445,710.60x = 668,567.34 × 113,286.60
  4. Step 4: Simplify right side
    445,710.60x = 75,739,720,819.64
  5. Step 5: Solve for x
    x = 75,739,720,819.64/445,710.60
  6. Step 6: Final answer
    x = 169,930.27

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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.