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Finding the Fourth Proportional to 248,853.30, 373,279.95 and 82,641.30

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Solution

The fourth proportional to 248,853.30, 373,279.95 and 82,641.30 is: 123,961.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,853.30 : 373,279.95 = 82,641.30 : x
  2. Step 2: Convert to fraction form
    248,853.30/373,279.95 = 82,641.30/x
  3. Step 3: Cross multiply
    248,853.30x = 373,279.95 × 82,641.30
  4. Step 4: Simplify right side
    248,853.30x = 30,848,340,331.94
  5. Step 5: Solve for x
    x = 30,848,340,331.94/248,853.30
  6. Step 6: Final answer
    x = 123,961.95

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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.