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Finding the Fourth Proportional to 423,454.44, 635,164.06 and 107,919.08

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Solution

The fourth proportional to 423,454.44, 635,164.06 and 107,919.08 is: 161,874.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,454.44 : 635,164.06 = 107,919.08 : x
  2. Step 2: Convert to fraction form
    423,454.44/635,164.06 = 107,919.08/x
  3. Step 3: Cross multiply
    423,454.44x = 635,164.06 × 107,919.08
  4. Step 4: Simplify right side
    423,454.44x = 68,546,321,004.26
  5. Step 5: Solve for x
    x = 68,546,321,004.26/423,454.44
  6. Step 6: Final answer
    x = 161,874.13

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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.