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Finding the Fourth Proportional to 399,186.86, 598,558.76 and 132,801.96

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Solution

The fourth proportional to 399,186.86, 598,558.76 and 132,801.96 is: 199,129.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,186.86 : 598,558.76 = 132,801.96 : x
  2. Step 2: Convert to fraction form
    399,186.86/598,558.76 = 132,801.96/x
  3. Step 3: Cross multiply
    399,186.86x = 598,558.76 × 132,801.96
  4. Step 4: Simplify right side
    399,186.86x = 79,489,775,839.16
  5. Step 5: Solve for x
    x = 79,489,775,839.16/399,186.86
  6. Step 6: Final answer
    x = 199,129.24

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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.