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Finding the Fourth Proportional to 92,380.94, 138,559.43 and 29,207.42

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Solution

The fourth proportional to 92,380.94, 138,559.43 and 29,207.42 is: 43,807.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,380.94 : 138,559.43 = 29,207.42 : x
  2. Step 2: Convert to fraction form
    92,380.94/138,559.43 = 29,207.42/x
  3. Step 3: Cross multiply
    92,380.94x = 138,559.43 × 29,207.42
  4. Step 4: Simplify right side
    92,380.94x = 4,046,962,628.14
  5. Step 5: Solve for x
    x = 4,046,962,628.14/92,380.94
  6. Step 6: Final answer
    x = 43,807.34

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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.