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Finding the Fourth Proportional to 92,405.91, 138,625.95 and 29,241.93

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Solution

The fourth proportional to 92,405.91, 138,625.95 and 29,241.93 is: 43,868.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,405.91 : 138,625.95 = 29,241.93 : x
  2. Step 2: Convert to fraction form
    92,405.91/138,625.95 = 29,241.93/x
  3. Step 3: Cross multiply
    92,405.91x = 138,625.95 × 29,241.93
  4. Step 4: Simplify right side
    92,405.91x = 4,053,690,011.33
  5. Step 5: Solve for x
    x = 4,053,690,011.33/92,405.91
  6. Step 6: Final answer
    x = 43,868.30

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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.