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Finding the Fourth Proportional to 443,816.20, 665,709.72 and 177,505.21

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Solution

The fourth proportional to 443,816.20, 665,709.72 and 177,505.21 is: 266,251.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,816.20 : 665,709.72 = 177,505.21 : x
  2. Step 2: Convert to fraction form
    443,816.20/665,709.72 = 177,505.21/x
  3. Step 3: Cross multiply
    443,816.20x = 665,709.72 × 177,505.21
  4. Step 4: Simplify right side
    443,816.20x = 118,166,943,647.64
  5. Step 5: Solve for x
    x = 118,166,943,647.64/443,816.20
  6. Step 6: Final answer
    x = 266,251.98

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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.