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Finding the Fourth Proportional to 300,725.60, 414,899.16 and 171,571.29

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Solution

The fourth proportional to 300,725.60, 414,899.16 and 171,571.29 is: 236,710.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,725.60 : 414,899.16 = 171,571.29 : x
  2. Step 2: Convert to fraction form
    300,725.60/414,899.16 = 171,571.29/x
  3. Step 3: Cross multiply
    300,725.60x = 414,899.16 × 171,571.29
  4. Step 4: Simplify right side
    300,725.60x = 71,184,784,101.12
  5. Step 5: Solve for x
    x = 71,184,784,101.12/300,725.60
  6. Step 6: Final answer
    x = 236,710.09

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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.