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Finding the Fourth Proportional to 395,546.70, 593,147.25 and 115,057.74

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Solution

The fourth proportional to 395,546.70, 593,147.25 and 115,057.74 is: 172,536.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,546.70 : 593,147.25 = 115,057.74 : x
  2. Step 2: Convert to fraction form
    395,546.70/593,147.25 = 115,057.74/x
  3. Step 3: Cross multiply
    395,546.70x = 593,147.25 × 115,057.74
  4. Step 4: Simplify right side
    395,546.70x = 68,246,182,072.22
  5. Step 5: Solve for x
    x = 68,246,182,072.22/395,546.70
  6. Step 6: Final answer
    x = 172,536.35

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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.