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Finding the Fourth Proportional to 395,549.36, 593,340.44 and 115,066.61

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Solution

The fourth proportional to 395,549.36, 593,340.44 and 115,066.61 is: 172,604.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,549.36 : 593,340.44 = 115,066.61 : x
  2. Step 2: Convert to fraction form
    395,549.36/593,340.44 = 115,066.61/x
  3. Step 3: Cross multiply
    395,549.36x = 593,340.44 × 115,066.61
  4. Step 4: Simplify right side
    395,549.36x = 68,273,669,464.67
  5. Step 5: Solve for x
    x = 68,273,669,464.67/395,549.36
  6. Step 6: Final answer
    x = 172,604.68

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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.