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Finding the Fourth Proportional to 395,470.21, 593,306.43 and 114,987.46

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Solution

The fourth proportional to 395,470.21, 593,306.43 and 114,987.46 is: 172,510.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,470.21 : 593,306.43 = 114,987.46 : x
  2. Step 2: Convert to fraction form
    395,470.21/593,306.43 = 114,987.46/x
  3. Step 3: Cross multiply
    395,470.21x = 593,306.43 × 114,987.46
  4. Step 4: Simplify right side
    395,470.21x = 68,222,799,387.37
  5. Step 5: Solve for x
    x = 68,222,799,387.37/395,470.21
  6. Step 6: Final answer
    x = 172,510.59

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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.