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Finding the Fourth Proportional to 406,086.11, 609,006.09 and 169,373.43

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Solution

The fourth proportional to 406,086.11, 609,006.09 and 169,373.43 is: 254,008.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,086.11 : 609,006.09 = 169,373.43 : x
  2. Step 2: Convert to fraction form
    406,086.11/609,006.09 = 169,373.43/x
  3. Step 3: Cross multiply
    406,086.11x = 609,006.09 × 169,373.43
  4. Step 4: Simplify right side
    406,086.11x = 103,149,450,989.34
  5. Step 5: Solve for x
    x = 103,149,450,989.34/406,086.11
  6. Step 6: Final answer
    x = 254,008.81

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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.