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Finding the Fourth Proportional to 323,939.76, 486,049.98 and 174,005.12

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Solution

The fourth proportional to 323,939.76, 486,049.98 and 174,005.12 is: 261,083.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,939.76 : 486,049.98 = 174,005.12 : x
  2. Step 2: Convert to fraction form
    323,939.76/486,049.98 = 174,005.12/x
  3. Step 3: Cross multiply
    323,939.76x = 486,049.98 × 174,005.12
  4. Step 4: Simplify right side
    323,939.76x = 84,575,182,665.65
  5. Step 5: Solve for x
    x = 84,575,182,665.65/323,939.76
  6. Step 6: Final answer
    x = 261,083.06

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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.