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Finding the Fourth Proportional to 92,405.30, 138,625.07 and 29,241.33

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Solution

The fourth proportional to 92,405.30, 138,625.07 and 29,241.33 is: 43,867.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,405.30 : 138,625.07 = 29,241.33 : x
  2. Step 2: Convert to fraction form
    92,405.30/138,625.07 = 29,241.33/x
  3. Step 3: Cross multiply
    92,405.30x = 138,625.07 × 29,241.33
  4. Step 4: Simplify right side
    92,405.30x = 4,053,580,578.81
  5. Step 5: Solve for x
    x = 4,053,580,578.81/92,405.30
  6. Step 6: Final answer
    x = 43,867.40

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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.