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Finding the Fourth Proportional to 295,450.65, 443,287.64 and 115,664.55

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Solution

The fourth proportional to 295,450.65, 443,287.64 and 115,664.55 is: 173,540.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,450.65 : 443,287.64 = 115,664.55 : x
  2. Step 2: Convert to fraction form
    295,450.65/443,287.64 = 115,664.55/x
  3. Step 3: Cross multiply
    295,450.65x = 443,287.64 × 115,664.55
  4. Step 4: Simplify right side
    295,450.65x = 51,272,664,822.84
  5. Step 5: Solve for x
    x = 51,272,664,822.84/295,450.65
  6. Step 6: Final answer
    x = 173,540.54

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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.