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Finding the Fourth Proportional to 92,493.70, 138,744.43 and 29,312.44

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Solution

The fourth proportional to 92,493.70, 138,744.43 and 29,312.44 is: 43,969.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,493.70 : 138,744.43 = 29,312.44 : x
  2. Step 2: Convert to fraction form
    92,493.70/138,744.43 = 29,312.44/x
  3. Step 3: Cross multiply
    92,493.70x = 138,744.43 × 29,312.44
  4. Step 4: Simplify right side
    92,493.70x = 4,066,937,359.57
  5. Step 5: Solve for x
    x = 4,066,937,359.57/92,493.70
  6. Step 6: Final answer
    x = 43,969.89

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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.