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Finding the Fourth Proportional to 235,297.28, 352,699.20 and 115,188.61

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Solution

The fourth proportional to 235,297.28, 352,699.20 and 115,188.61 is: 172,662.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,297.28 : 352,699.20 = 115,188.61 : x
  2. Step 2: Convert to fraction form
    235,297.28/352,699.20 = 115,188.61/x
  3. Step 3: Cross multiply
    235,297.28x = 352,699.20 × 115,188.61
  4. Step 4: Simplify right side
    235,297.28x = 40,626,929,221.72
  5. Step 5: Solve for x
    x = 40,626,929,221.72/235,297.28
  6. Step 6: Final answer
    x = 172,662.13

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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.