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Finding the Fourth Proportional to 395,717.47, 593,514.17 and 125,810.21

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Solution

The fourth proportional to 395,717.47, 593,514.17 and 125,810.21 is: 188,695.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,717.47 : 593,514.17 = 125,810.21 : x
  2. Step 2: Convert to fraction form
    395,717.47/593,514.17 = 125,810.21/x
  3. Step 3: Cross multiply
    395,717.47x = 593,514.17 × 125,810.21
  4. Step 4: Simplify right side
    395,717.47x = 74,670,143,692.20
  5. Step 5: Solve for x
    x = 74,670,143,692.20/395,717.47
  6. Step 6: Final answer
    x = 188,695.60

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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.