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Finding the Fourth Proportional to 418,229.22, 626,991.14 and 181,393.50

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Solution

The fourth proportional to 418,229.22, 626,991.14 and 181,393.50 is: 271,937.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,229.22 : 626,991.14 = 181,393.50 : x
  2. Step 2: Convert to fraction form
    418,229.22/626,991.14 = 181,393.50/x
  3. Step 3: Cross multiply
    418,229.22x = 626,991.14 × 181,393.50
  4. Step 4: Simplify right side
    418,229.22x = 113,732,117,353.59
  5. Step 5: Solve for x
    x = 113,732,117,353.59/418,229.22
  6. Step 6: Final answer
    x = 271,937.28

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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.