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Finding the Fourth Proportional to 293,158.21, 404,568.23 and 172,297.78

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Solution

The fourth proportional to 293,158.21, 404,568.23 and 172,297.78 is: 237,776.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,158.21 : 404,568.23 = 172,297.78 : x
  2. Step 2: Convert to fraction form
    293,158.21/404,568.23 = 172,297.78/x
  3. Step 3: Cross multiply
    293,158.21x = 404,568.23 × 172,297.78
  4. Step 4: Simplify right side
    293,158.21x = 69,706,207,887.53
  5. Step 5: Solve for x
    x = 69,706,207,887.53/293,158.21
  6. Step 6: Final answer
    x = 237,776.76

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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.