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Finding the Fourth Proportional to 79,283.50, 109,414.54 and 43,474.89

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Solution

The fourth proportional to 79,283.50, 109,414.54 and 43,474.89 is: 59,997.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,283.50 : 109,414.54 = 43,474.89 : x
  2. Step 2: Convert to fraction form
    79,283.50/109,414.54 = 43,474.89/x
  3. Step 3: Cross multiply
    79,283.50x = 109,414.54 × 43,474.89
  4. Step 4: Simplify right side
    79,283.50x = 4,756,785,090.90
  5. Step 5: Solve for x
    x = 4,756,785,090.90/79,283.50
  6. Step 6: Final answer
    x = 59,997.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.