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Finding the Fourth Proportional to 61,579.40, 92,138.44 and 43,851.03

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Solution

The fourth proportional to 61,579.40, 92,138.44 and 43,851.03 is: 65,612.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,579.40 : 92,138.44 = 43,851.03 : x
  2. Step 2: Convert to fraction form
    61,579.40/92,138.44 = 43,851.03/x
  3. Step 3: Cross multiply
    61,579.40x = 92,138.44 × 43,851.03
  4. Step 4: Simplify right side
    61,579.40x = 4,040,365,496.59
  5. Step 5: Solve for x
    x = 4,040,365,496.59/61,579.40
  6. Step 6: Final answer
    x = 65,612.29

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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.