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Finding the Fourth Proportional to 442,876.20, 664,184.70 and 158,533.80

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Solution

The fourth proportional to 442,876.20, 664,184.70 and 158,533.80 is: 237,754.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,876.20 : 664,184.70 = 158,533.80 : x
  2. Step 2: Convert to fraction form
    442,876.20/664,184.70 = 158,533.80/x
  3. Step 3: Cross multiply
    442,876.20x = 664,184.70 × 158,533.80
  4. Step 4: Simplify right side
    442,876.20x = 105,295,724,392.86
  5. Step 5: Solve for x
    x = 105,295,724,392.86/442,876.20
  6. Step 6: Final answer
    x = 237,754.31

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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.