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Finding the Fourth Proportional to 350,965.64, 484,331.16 and 189,820.88

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Solution

The fourth proportional to 350,965.64, 484,331.16 and 189,820.88 is: 261,952.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,965.64 : 484,331.16 = 189,820.88 : x
  2. Step 2: Convert to fraction form
    350,965.64/484,331.16 = 189,820.88/x
  3. Step 3: Cross multiply
    350,965.64x = 484,331.16 × 189,820.88
  4. Step 4: Simplify right side
    350,965.64x = 91,936,167,002.62
  5. Step 5: Solve for x
    x = 91,936,167,002.62/350,965.64
  6. Step 6: Final answer
    x = 261,952.04

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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.