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Finding the Fourth Proportional to 467,911.80, 701,867.70 and 187,630.20

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Solution

The fourth proportional to 467,911.80, 701,867.70 and 187,630.20 is: 281,445.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,911.80 : 701,867.70 = 187,630.20 : x
  2. Step 2: Convert to fraction form
    467,911.80/701,867.70 = 187,630.20/x
  3. Step 3: Cross multiply
    467,911.80x = 701,867.70 × 187,630.20
  4. Step 4: Simplify right side
    467,911.80x = 131,691,576,924.54
  5. Step 5: Solve for x
    x = 131,691,576,924.54/467,911.80
  6. Step 6: Final answer
    x = 281,445.30

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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.