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Finding the Fourth Proportional to 373,516.38, 515,495.61 and 207,961.02

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Solution

The fourth proportional to 373,516.38, 515,495.61 and 207,961.02 is: 287,010.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,516.38 : 515,495.61 = 207,961.02 : x
  2. Step 2: Convert to fraction form
    373,516.38/515,495.61 = 207,961.02/x
  3. Step 3: Cross multiply
    373,516.38x = 515,495.61 × 207,961.02
  4. Step 4: Simplify right side
    373,516.38x = 107,202,992,861.12
  5. Step 5: Solve for x
    x = 107,202,992,861.12/373,516.38
  6. Step 6: Final answer
    x = 287,010.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.