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Finding the Fourth Proportional to 226,449.64, 312,492.90 and 125,845.48

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Solution

The fourth proportional to 226,449.64, 312,492.90 and 125,845.48 is: 173,662.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,449.64 : 312,492.90 = 125,845.48 : x
  2. Step 2: Convert to fraction form
    226,449.64/312,492.90 = 125,845.48/x
  3. Step 3: Cross multiply
    226,449.64x = 312,492.90 × 125,845.48
  4. Step 4: Simplify right side
    226,449.64x = 39,325,818,997.09
  5. Step 5: Solve for x
    x = 39,325,818,997.09/226,449.64
  6. Step 6: Final answer
    x = 173,662.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.