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Finding the Fourth Proportional to 79,905.35, 110,265.92 and 43,605.87

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Solution

The fourth proportional to 79,905.35, 110,265.92 and 43,605.87 is: 60,174.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,905.35 : 110,265.92 = 43,605.87 : x
  2. Step 2: Convert to fraction form
    79,905.35/110,265.92 = 43,605.87/x
  3. Step 3: Cross multiply
    79,905.35x = 110,265.92 × 43,605.87
  4. Step 4: Simplify right side
    79,905.35x = 4,808,241,154.92
  5. Step 5: Solve for x
    x = 4,808,241,154.92/79,905.35
  6. Step 6: Final answer
    x = 60,174.21

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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.