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Finding the Fourth Proportional to 293,600.31, 405,149.24 and 172,718.24

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Solution

The fourth proportional to 293,600.31, 405,149.24 and 172,718.24 is: 238,339.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,600.31 : 405,149.24 = 172,718.24 : x
  2. Step 2: Convert to fraction form
    293,600.31/405,149.24 = 172,718.24/x
  3. Step 3: Cross multiply
    293,600.31x = 405,149.24 × 172,718.24
  4. Step 4: Simplify right side
    293,600.31x = 69,976,660,780.80
  5. Step 5: Solve for x
    x = 69,976,660,780.80/293,600.31
  6. Step 6: Final answer
    x = 238,339.87

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1.5x scale

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.