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Finding the Fourth Proportional to 336,892.20, 505,044.54 and 126,473.64

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Solution

The fourth proportional to 336,892.20, 505,044.54 and 126,473.64 is: 189,600.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,892.20 : 505,044.54 = 126,473.64 : x
  2. Step 2: Convert to fraction form
    336,892.20/505,044.54 = 126,473.64/x
  3. Step 3: Cross multiply
    336,892.20x = 505,044.54 × 126,473.64
  4. Step 4: Simplify right side
    336,892.20x = 63,874,821,335.93
  5. Step 5: Solve for x
    x = 63,874,821,335.93/336,892.20
  6. Step 6: Final answer
    x = 189,600.18

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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.