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Finding the Fourth Proportional to 442,891.90, 664,337.85 and 162,372.70

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Solution

The fourth proportional to 442,891.90, 664,337.85 and 162,372.70 is: 243,559.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,891.90 : 664,337.85 = 162,372.70 : x
  2. Step 2: Convert to fraction form
    442,891.90/664,337.85 = 162,372.70/x
  3. Step 3: Cross multiply
    442,891.90x = 664,337.85 × 162,372.70
  4. Step 4: Simplify right side
    442,891.90x = 107,870,330,416.70
  5. Step 5: Solve for x
    x = 107,870,330,416.70/442,891.90
  6. Step 6: Final answer
    x = 243,559.05

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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.