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Finding the Fourth Proportional to 79,144.60, 109,218.09 and 43,333.96

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Solution

The fourth proportional to 79,144.60, 109,218.09 and 43,333.96 is: 59,800.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,144.60 : 109,218.09 = 43,333.96 : x
  2. Step 2: Convert to fraction form
    79,144.60/109,218.09 = 43,333.96/x
  3. Step 3: Cross multiply
    79,144.60x = 109,218.09 × 43,333.96
  4. Step 4: Simplify right side
    79,144.60x = 4,732,852,343.34
  5. Step 5: Solve for x
    x = 4,732,852,343.34/79,144.60
  6. Step 6: Final answer
    x = 59,800.07

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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.