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Finding the Fourth Proportional to 195,797.20, 293,695.80 and 172,469.20

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Solution

The fourth proportional to 195,797.20, 293,695.80 and 172,469.20 is: 258,703.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,797.20 : 293,695.80 = 172,469.20 : x
  2. Step 2: Convert to fraction form
    195,797.20/293,695.80 = 172,469.20/x
  3. Step 3: Cross multiply
    195,797.20x = 293,695.80 × 172,469.20
  4. Step 4: Simplify right side
    195,797.20x = 50,653,479,669.36
  5. Step 5: Solve for x
    x = 50,653,479,669.36/195,797.20
  6. Step 6: Final answer
    x = 258,703.80

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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.