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Finding the Fourth Proportional to 79,102.77, 118,651.05 and 29,161.28

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Solution

The fourth proportional to 79,102.77, 118,651.05 and 29,161.28 is: 43,740.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,102.77 : 118,651.05 = 29,161.28 : x
  2. Step 2: Convert to fraction form
    79,102.77/118,651.05 = 29,161.28/x
  3. Step 3: Cross multiply
    79,102.77x = 118,651.05 × 29,161.28
  4. Step 4: Simplify right side
    79,102.77x = 3,460,015,898.09
  5. Step 5: Solve for x
    x = 3,460,015,898.09/79,102.77
  6. Step 6: Final answer
    x = 43,740.77

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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.