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Finding the Fourth Proportional to 168,009.66, 251,985.33 and 57,201.66

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Solution

The fourth proportional to 168,009.66, 251,985.33 and 57,201.66 is: 85,792.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,009.66 : 251,985.33 = 57,201.66 : x
  2. Step 2: Convert to fraction form
    168,009.66/251,985.33 = 57,201.66/x
  3. Step 3: Cross multiply
    168,009.66x = 251,985.33 × 57,201.66
  4. Step 4: Simplify right side
    168,009.66x = 14,413,979,171.65
  5. Step 5: Solve for x
    x = 14,413,979,171.65/168,009.66
  6. Step 6: Final answer
    x = 85,792.56

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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.