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Finding the Fourth Proportional to 442,226.88, 663,347.52 and 126,682.56

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Solution

The fourth proportional to 442,226.88, 663,347.52 and 126,682.56 is: 190,025.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,226.88 : 663,347.52 = 126,682.56 : x
  2. Step 2: Convert to fraction form
    442,226.88/663,347.52 = 126,682.56/x
  3. Step 3: Cross multiply
    442,226.88x = 663,347.52 × 126,682.56
  4. Step 4: Simplify right side
    442,226.88x = 84,034,562,003.25
  5. Step 5: Solve for x
    x = 84,034,562,003.25/442,226.88
  6. Step 6: Final answer
    x = 190,025.90

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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.