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Finding the Fourth Proportional to 79,023.75, 118,410.78 and 64,160.04

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Solution

The fourth proportional to 79,023.75, 118,410.78 and 64,160.04 is: 96,138.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,023.75 : 118,410.78 = 64,160.04 : x
  2. Step 2: Convert to fraction form
    79,023.75/118,410.78 = 64,160.04/x
  3. Step 3: Cross multiply
    79,023.75x = 118,410.78 × 64,160.04
  4. Step 4: Simplify right side
    79,023.75x = 7,597,240,436.66
  5. Step 5: Solve for x
    x = 7,597,240,436.66/79,023.75
  6. Step 6: Final answer
    x = 96,138.70

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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.