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Finding the Fourth Proportional to 395,570.39, 593,372.03 and 115,087.64

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Solution

The fourth proportional to 395,570.39, 593,372.03 and 115,087.64 is: 172,636.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,570.39 : 593,372.03 = 115,087.64 : x
  2. Step 2: Convert to fraction form
    395,570.39/593,372.03 = 115,087.64/x
  3. Step 3: Cross multiply
    395,570.39x = 593,372.03 × 115,087.64
  4. Step 4: Simplify right side
    395,570.39x = 68,289,785,999.27
  5. Step 5: Solve for x
    x = 68,289,785,999.27/395,570.39
  6. Step 6: Final answer
    x = 172,636.24

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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.