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Finding the Fourth Proportional to 443,687.14, 665,599.52 and 187,520.79

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Solution

The fourth proportional to 443,687.14, 665,599.52 and 187,520.79 is: 281,310.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,687.14 : 665,599.52 = 187,520.79 : x
  2. Step 2: Convert to fraction form
    443,687.14/665,599.52 = 187,520.79/x
  3. Step 3: Cross multiply
    443,687.14x = 665,599.52 × 187,520.79
  4. Step 4: Simplify right side
    443,687.14x = 124,813,744,905.64
  5. Step 5: Solve for x
    x = 124,813,744,905.64/443,687.14
  6. Step 6: Final answer
    x = 281,310.26

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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.