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Finding the Fourth Proportional to 193,531.88, 267,073.80 and 108,649.10

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Solution

The fourth proportional to 193,531.88, 267,073.80 and 108,649.10 is: 149,935.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,531.88 : 267,073.80 = 108,649.10 : x
  2. Step 2: Convert to fraction form
    193,531.88/267,073.80 = 108,649.10/x
  3. Step 3: Cross multiply
    193,531.88x = 267,073.80 × 108,649.10
  4. Step 4: Simplify right side
    193,531.88x = 29,017,328,003.58
  5. Step 5: Solve for x
    x = 29,017,328,003.58/193,531.88
  6. Step 6: Final answer
    x = 149,935.65

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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.