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Finding the Fourth Proportional to 395,502.89, 593,355.18 and 115,020.14

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Solution

The fourth proportional to 395,502.89, 593,355.18 and 115,020.14 is: 172,559.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,502.89 : 593,355.18 = 115,020.14 : x
  2. Step 2: Convert to fraction form
    395,502.89/593,355.18 = 115,020.14/x
  3. Step 3: Cross multiply
    395,502.89x = 593,355.18 × 115,020.14
  4. Step 4: Simplify right side
    395,502.89x = 68,247,795,873.33
  5. Step 5: Solve for x
    x = 68,247,795,873.33/395,502.89
  6. Step 6: Final answer
    x = 172,559.54

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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.