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Finding the Fourth Proportional to 79,267.70, 118,767.81 and 39,233.30

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Solution

The fourth proportional to 79,267.70, 118,767.81 and 39,233.30 is: 58,783.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,267.70 : 118,767.81 = 39,233.30 : x
  2. Step 2: Convert to fraction form
    79,267.70/118,767.81 = 39,233.30/x
  3. Step 3: Cross multiply
    79,267.70x = 118,767.81 × 39,233.30
  4. Step 4: Simplify right side
    79,267.70x = 4,659,652,673.36
  5. Step 5: Solve for x
    x = 4,659,652,673.36/79,267.70
  6. Step 6: Final answer
    x = 58,783.75

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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.