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Finding the Fourth Proportional to 397,245.66, 595,886.61 and 131,029.38

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Solution

The fourth proportional to 397,245.66, 595,886.61 and 131,029.38 is: 196,550.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,245.66 : 595,886.61 = 131,029.38 : x
  2. Step 2: Convert to fraction form
    397,245.66/595,886.61 = 131,029.38/x
  3. Step 3: Cross multiply
    397,245.66x = 595,886.61 × 131,029.38
  4. Step 4: Simplify right side
    397,245.66x = 78,078,653,058.60
  5. Step 5: Solve for x
    x = 78,078,653,058.60/397,245.66
  6. Step 6: Final answer
    x = 196,550.05

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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.