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Finding the Fourth Proportional to 350,115.80, 525,206.38 and 271,318.48

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Solution

The fourth proportional to 350,115.80, 525,206.38 and 271,318.48 is: 407,003.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,115.80 : 525,206.38 = 271,318.48 : x
  2. Step 2: Convert to fraction form
    350,115.80/525,206.38 = 271,318.48/x
  3. Step 3: Cross multiply
    350,115.80x = 525,206.38 × 271,318.48
  4. Step 4: Simplify right side
    350,115.80x = 142,498,196,707.90
  5. Step 5: Solve for x
    x = 142,498,196,707.90/350,115.80
  6. Step 6: Final answer
    x = 407,003.05

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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.