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Finding the Fourth Proportional to 443,348.20, 664,892.70 and 159,005.80

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Solution

The fourth proportional to 443,348.20, 664,892.70 and 159,005.80 is: 238,462.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,348.20 : 664,892.70 = 159,005.80 : x
  2. Step 2: Convert to fraction form
    443,348.20/664,892.70 = 159,005.80/x
  3. Step 3: Cross multiply
    443,348.20x = 664,892.70 × 159,005.80
  4. Step 4: Simplify right side
    443,348.20x = 105,721,795,677.66
  5. Step 5: Solve for x
    x = 105,721,795,677.66/443,348.20
  6. Step 6: Final answer
    x = 238,462.22

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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.