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Finding the Fourth Proportional to 272,671.33, 409,073.31 and 92,768.71

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Solution

The fourth proportional to 272,671.33, 409,073.31 and 92,768.71 is: 139,175.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,671.33 : 409,073.31 = 92,768.71 : x
  2. Step 2: Convert to fraction form
    272,671.33/409,073.31 = 92,768.71/x
  3. Step 3: Cross multiply
    272,671.33x = 409,073.31 × 92,768.71
  4. Step 4: Simplify right side
    272,671.33x = 37,949,203,264.13
  5. Step 5: Solve for x
    x = 37,949,203,264.13/272,671.33
  6. Step 6: Final answer
    x = 139,175.63

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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.