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Finding the Fourth Proportional to 395,549.88, 593,359.78 and 111,242.84

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Solution

The fourth proportional to 395,549.88, 593,359.78 and 111,242.84 is: 166,874.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,549.88 : 593,359.78 = 111,242.84 : x
  2. Step 2: Convert to fraction form
    395,549.88/593,359.78 = 111,242.84/x
  3. Step 3: Cross multiply
    395,549.88x = 593,359.78 × 111,242.84
  4. Step 4: Simplify right side
    395,549.88x = 66,007,027,068.98
  5. Step 5: Solve for x
    x = 66,007,027,068.98/395,549.88
  6. Step 6: Final answer
    x = 166,874.09

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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.