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Finding the Fourth Proportional to 347,796.80, 521,695.20 and 170,331.20

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Solution

The fourth proportional to 347,796.80, 521,695.20 and 170,331.20 is: 255,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,796.80 : 521,695.20 = 170,331.20 : x
  2. Step 2: Convert to fraction form
    347,796.80/521,695.20 = 170,331.20/x
  3. Step 3: Cross multiply
    347,796.80x = 521,695.20 × 170,331.20
  4. Step 4: Simplify right side
    347,796.80x = 88,860,969,450.24
  5. Step 5: Solve for x
    x = 88,860,969,450.24/347,796.80
  6. Step 6: Final answer
    x = 255,496.80

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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.