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Finding the Fourth Proportional to 395,642.91, 593,514.65 and 125,674.73

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Solution

The fourth proportional to 395,642.91, 593,514.65 and 125,674.73 is: 188,528.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,642.91 : 593,514.65 = 125,674.73 : x
  2. Step 2: Convert to fraction form
    395,642.91/593,514.65 = 125,674.73/x
  3. Step 3: Cross multiply
    395,642.91x = 593,514.65 × 125,674.73
  4. Step 4: Simplify right side
    395,642.91x = 74,589,793,389.79
  5. Step 5: Solve for x
    x = 74,589,793,389.79/395,642.91
  6. Step 6: Final answer
    x = 188,528.07

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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.