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Finding the Fourth Proportional to 228,416.20, 343,013.10 and 169,318.60

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Solution

The fourth proportional to 228,416.20, 343,013.10 and 169,318.60 is: 254,266.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,416.20 : 343,013.10 = 169,318.60 : x
  2. Step 2: Convert to fraction form
    228,416.20/343,013.10 = 169,318.60/x
  3. Step 3: Cross multiply
    228,416.20x = 343,013.10 × 169,318.60
  4. Step 4: Simplify right side
    228,416.20x = 58,078,497,873.66
  5. Step 5: Solve for x
    x = 58,078,497,873.66/228,416.20
  6. Step 6: Final answer
    x = 254,266.11

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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.