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Finding the Fourth Proportional to 264,593.61, 396,945.09 and 87,111.27

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Solution

The fourth proportional to 264,593.61, 396,945.09 and 87,111.27 is: 130,684.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,593.61 : 396,945.09 = 87,111.27 : x
  2. Step 2: Convert to fraction form
    264,593.61/396,945.09 = 87,111.27/x
  3. Step 3: Cross multiply
    264,593.61x = 396,945.09 × 87,111.27
  4. Step 4: Simplify right side
    264,593.61x = 34,578,390,910.16
  5. Step 5: Solve for x
    x = 34,578,390,910.16/264,593.61
  6. Step 6: Final answer
    x = 130,684.91

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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.